I appreciate you making the video but the lack of organization with labeling and making things neater makes this confusing .
@DDtona9318 күн бұрын
Thank you so much :) this makes it so much easier to understand, just need to know why with Lidocaine and Ketamine do we use X per minute and not divided by like we do per hour formula please. Like why Xs per minute 60seconds instead of divide by like we do for Fentanyl. I know this video is 3 years old already so will be very surprised if you can answer but massively appreciate if you could, I'm in final year of veterinary nursing school and need to understand the formula properly.
@vet-techbites2218 күн бұрын
Hello! I try to answer when I can haha :D. So for some medications, that is just typically how they are dosed out. If you look up Lidocaine, Fentanyl, and Ketamine in Plumb's drug handbook, or another source that gives dosages for injectable drugs, you will usually see them dosed out like this; so I just tried to emulate that, as it mirrored what I encountered in a clinical setting over many years. However, if you wanted to simplify it to hours beforehand, you technically can. For instance: If a lidocaine CRI (20mg/mL) for a 5kg patient was dosed at 20mcg/kg/min, you could multiply that 20mcg/kg/min x 60min =1,200mcg/hr, which is the same as 1.2mg = 1.2mg/kg/hr, and then do your math like that afterwards. Both =6mg/hr. However, when you get into more obscure numbers that have several numbers after a decimal point, you can run in to some pretty big rounding variations. So I believe this is why some medications are dosed out like that if they have a tight margin of safety, or are extremely potent (only a small amount is needed to produce a drastic effect) like ketamine. Fentanyl, though highly potent and heavy, is rapidly eliminated and reversible, which makes it way more safe and have a wider margin of error. I usually recommend going with whatever dosage is given to you, and then just math it from there, it's not super important whether its mcg/kg/min vs mg/kg/hr vs etc. Just take the dosage in front of you and go with it :) I hope this helped, good luck in your final year!!! Feel free to check out my other videos in case they may be helpful too!
@DDtona9318 күн бұрын
@@vet-techbites22 hallelujah 🙌 thank you for answering my question and I've saved your other videos to rewatch and study as well. I wonder how many animals lives you have already helped save just by sharing your content! God bless you ❤
@vet-techbites2214 күн бұрын
@@DDtona93 Thank you so much! That made me feel really good :D I'm glad I was able to help, I'm wishing you the absolute best of luck!!!
@brianna720719 күн бұрын
i know this sounds silly, but on the cross-multiplication part, an you explain why lrs is on the top and mg is on the bottom, why x is on bottom/vs top? Is it always bigger number over the smaller number, or is there some other reasoning to this?
@vet-techbites2218 күн бұрын
Hello! Not silly at all :). So you can really make the X be on top or bottom, which ever one you want. But the key is to keep that consistent throughout your problem. For instance at 2:43, I wrote that I had 720mL/24mg and I am trying to find how many mg I need for 1,000mL, so since I have mL/mg the opposite side of that equation has to stay that way and therefore X is on bottom. However if I wrote it as 24mg/720mL = xmg/1000mL, the X would then be on top and the answer remains the same :) Since we are dealing with ratios/proportions, as long as the units are kept consistent (top v bottom), the math should all check out in the end.
@actuallogic3551Ай бұрын
Re Lidocain, you explained grams as %.. % = g/100ml Then jumped to 20mg/ml [2000mg/100ml]. Jumped a step there.. But very helpful! Thanks!
@vet-techbites22Ай бұрын
Hello, yes I actually explain this in more detail during the percent solutions video; was trying to keep it focused just on the CRI portion :)
@DC-xp2uyАй бұрын
Hi, the video is very helpful. For the ketamine, how does this work if I’m using a syringe pump. 0.29mls added to what?
@zm61864 ай бұрын
I would actually skip the portion about how much fluid required per day and use this formula: Drug dose rate (mg/kg/hr) x weight ( (kg) x Fluid bag volume ( mls) ÷ Fluid rate in (ml/hr)÷ Drug concentration ( mg/ml) = drug volume required to be put in bag .... Fignocaine ( 0.03 x 60) x 24 x 750 ÷ 60 ÷ 20 = 27 cc of lignocaine ( 20mg/ml = 540mg )
@vet-techbites223 ай бұрын
Hey, that is awesome! Just shows that there's a lot of ways it can be done :) I think explaining the rationale is best here when trying to show others, as all of the different things to keep track of can be hard for a lot of people, myself included lol. This method may be best for you, and your answers are probably always correct! I personally choose to do it this way, because it's how I understand best and I can keep track of everything, which can be hard sometimes :)
@samanthasenseney65264 ай бұрын
future tech here! my anesthesiology course just started, and this one video has changed my life 😅 thank u!
@vet-techbites223 ай бұрын
I'm so glad!! You are most welcome, I'm glad you found it helpful!
@camrynzurawski80774 ай бұрын
Hi Gerry! Unsure if you remember me from work, but great videos! They are helping me a lot in school! :)
@vet-techbites224 ай бұрын
Hey Camryn! Of course I remember you, haha. I'm so glad they're helpful for you!! I've never had any doubts that you were going to absolutely CRUSH in your school :). Wishing you the absolute best!!
@tayler9424 ай бұрын
Thank you for making math so simple to understand. I'm taking my VTNE on Monday, please send me positive vibes!
@vet-techbites224 ай бұрын
Omg, sending ALL OF THE VIBES! You've got this!! Best recommendation: study your areas that make you anxious right before you go in, and when they seat you they provide you with a pencil and some paper, use the first 5-10 minutes and jot down everything you can think of on the topics that make you anxious, and then take your test nice and comfortable, with your study guide you just made :). Review your answers before submitting the test in case you accidentally picked an obvious wrong answer- I caught 2 on my test!! Wishing you the best!!
@tayler9424 ай бұрын
@@vet-techbites22 Thank you soooo much for this helpful advice!!!! I have a ton of notes from your CRI videos that I will be reviewing and writing down before the test!!!!
@alissas.97916 ай бұрын
I’m in a distance learning vet tech program right now and have been struggling with CRIs. Your videos really help break it down in a way I can understand. I was pausing the video to work out the problem and then would unpause to see if I got it right and I did! Thank you so much!
@vet-techbites223 ай бұрын
I love to hear these kind of things!! I'm glad you found it helpful :) keep up the great work!
@greggregory28946 ай бұрын
This is the first time I've seen someone explain this using cross multiplication and also thank god, because that's my secret math weapon. I spent all week struggling with this and one eight minute video gave me that eureka moment. Thank you!
@vet-techbites223 ай бұрын
Hahaha whenever possible, I always try to use proportions for that exact reason, they just make it so easy!! Multiply, divide, and done lol. I'm glad I could help :)
@familyemail53267 ай бұрын
Love your videos, but wanted to point out that at the end of the first CRI dilution at 6:37, to sum it up, you accidentally said "we need ***0.72 mL Ketamine and 3.928 mL diluent..." when you should have said .072 mL Ketamine. Thank you for what you do!
@lily58528 ай бұрын
Thank you so much this was helpful 😭!!
@user-xv6tg6lu7f9 ай бұрын
Hello I’m confused on how you turn the 2% of lidocaine into the 20mg/ml
@vet-techbites229 ай бұрын
Hello! So whenever we think about percents, remember that %= grams per 100mL (per-CENT, "cent" means 100). So 2%= 2g/100mL, or 2,000mg/100mL. Then simplify like normal and you'll be left with 20mg/mL. An easy cheater way to do it, is to simply move the decimal place 1 spot to the right, so 2%=20mg/mL. I hope that helped, thanks for watching!
@user-xv6tg6lu7f8 ай бұрын
Yes it did thank you for explaining!
@andieolivarez-bennett224310 ай бұрын
Thank you so much for your effort ❤
@Delanchet10 ай бұрын
Thank you for this!
@kristinareichl851610 ай бұрын
Just wated to throw out a thank you :) Im currently in vet school, and math has always been an area where I struggled immensely. But you seriously have made pharmacology math less stressful and terrifying. Thank you
@vet-techbites2210 ай бұрын
Hey, I'm so glad you found it helpful!! I wish you the best in Vet School!! Thank you for watching and for your kind words ❤️
@mikel608310 ай бұрын
33.3mg(reglan)/1000ml of lrs regardless of any weight ☺️
@samanthamccaffery9511 ай бұрын
Thank you so so much! I take the VTNE soon and have struggled with this for so long trying to use that equation. The way you explained it finally made it make sense to me!!
@thereignmann6281 Жыл бұрын
This video really helped me understand. Thank you.
@vet-techbites22 Жыл бұрын
I'm so glad :). Thanks for watching!
@caitlinbowra1515 Жыл бұрын
I know this video is a few years old but thank you so much for this! I have always struggled with concentrations but you’ve simplified so much. Really appreciate it
@alexventa7467 Жыл бұрын
Thank you! Finally someone who helps me understand better.
@rihanahawkins338 Жыл бұрын
Thank you for this very helpful! I was wondering for your ketamine example you did it differently that the lidocaine one and I did the same as your lidocaine one and still got the same answer as you so i wasn't sure if it mattered that i did it differently. I did 15mcgx32.4kg = 486mcg then /1000 = 0.49mgs/min 0.49mgsx60= 29.4mgs/hr 29.4mgs/100mgs= 0.29mls/hr. You however did 486mcg x 60 and got 29160mcg then /1000 and ect... just wondering if it matters which way I do it between the two as well as if there was a reason you did the Lidocaine the way I mentioned and then changed for Ketamine. Thank you :)
@vet-techbites22 Жыл бұрын
Hello! So I will say that there are many ways to math lol. You can do these equations several ways, though I'm not sure if I intended to switch up (video was done a while back), but either way the answer will be the same. Whether you take the mcg/min x 60 to get the mcg/hr then convert to mg/hr, or convert to mg/min and then x 60 you should get the same answer. Sometimes I will convert early if it's a huge number of mcg. To be honest, I have ADHD and likely switched it up without realizing haha. But like I said, either way you'll get the same answer. Occasionally you will have a slightly different decimal number depending on when you convert, but it is rarely significant. If you got the same answer a different way, you're good :). There are MANY ways to math, this is just how I understand it best and how I find most efficient while working in a busy hospital! Being able to adjust the steps (slightly) is just a bonus. Since unit conversions are equal (486mcg =0.486mg), the point in which you convert isn't super important. The important bit to note here is that when we round (0.486 to 0.49) is when variables start to take place that can sometimes, ever so slightly, change our end result. (Like if you round that, and then the next step, etc. The answer will be slightly different than if you only rounded at the end. So I would recommend not rounding anything until the last step to keep things as accurate as possible :). I'm glad you found it helpful, thanks for watching!
@vet-techbites22 Жыл бұрын
You can also check your answer by dividing the amount (mg or mcg) of each drug by the total volume of the cri to get the concentration of each and cross reference that with their mg/mcg per hour to see if it matches. At 1mL/hr it'll be the exact same. At 2mL/hr it'll be half, etc. Takes a little more math, but the peace of mind is nice if you're ever questioning :)
@ancos13ify Жыл бұрын
Thank you so much am doing on the job training and this helps so much.
@vet-techbites22 Жыл бұрын
I'm so glad you found it helpful! Thanks for watching :)
@Nicoandy01 Жыл бұрын
I needed a refresher on the math and this helped tremendously. By the way this is Tony over at Crossroads. Surprised when I saw your face in the video lol
@vet-techbites22 Жыл бұрын
Haha that's awesome, what's up Tony!!! I was also surprised when I saw your name in my notifications lol. I'm glad the video was able to help you out! It's cool to know that my videos can help veteran techs like you as well ❤️
@medguendouz8050 Жыл бұрын
But we're not gonna put 2ml fentanyl directly, we need to put it in a solution, so how we calculate it within a solution ?
@vet-techbites22 Жыл бұрын
Hello, so there's not really many contraindications to using straight fentanyl, in fact I have mostly used it without dilution for a majority of my career; so you can definitely give just fentanyl. However, if you need to expand a smaller volume or have a more usable number, please see Part 2 for dilutions! kzread.info/dash/bejne/o4Zo04-AornTZrA.html I hope you enjoy, please let me know if you have questions and I can help out. Thanks for watching!
@medguendouz8050 Жыл бұрын
@@vet-techbites22thank you, what's the rate that you recommend ?
@vet-techbites22 Жыл бұрын
@@medguendouz8050 You're welcome! There isn't really a "one size fits all" rate for Fentanyl, it depends on the patient, procedure, and circumstance. In general, for routine Surgical procedures, I have used 3-5mcg/kg/hr, but have had many circumstances that took that to 20-30mcg/kg/hr. But it's on the DVM to make those calls, we aren't able to dictate drug protocols. I recommend joining "Veterinary Anesthesia Nerds" on Facebook, they are absolutely amazing and have tons of anesthetic drug protocol information and rationale!
@rinikkumar2655 Жыл бұрын
And my question is does 2.2 when times it or divide would the number stay the same 2.2? 1:09
@vet-techbites22 Жыл бұрын
Hello! I am not sure I am understanding correctly, but multiplying or dividing by 2.2 is only to covert pounds (lb) to kilograms (kg). So to convert lb to kg you divide by 2.2, but to convert kg to lb you multiply by 2.2. Since there is 2.2kg per 1lb, you can also do a ratio/proportion to obtain this answer. I hope this answered your question, but if not please message me with picture of your problem and I can help with it! Thanks for watching!
@rinikkumar2655 Жыл бұрын
Can you help me on my homework? It’s on this ?
@PrincesssJaay Жыл бұрын
How do you know which one to place at the top or bottom? like the drugs in 24 hours or fluids in 24 hours
@vet-techbites22 Жыл бұрын
Hello! I am assuming you mean while doing a proportion to determine the amount of drug to add to the IVF bag? So it is sort if up to you on how to structure your math problems, but the important thing is to keep it consistent once you start. But since things are usually "per 24hr", it is easier for me to use this way. I hope this answered your question, but please let me know if not, and I can help with a little clarification! Thanks for watching!
@christopherromero944811 ай бұрын
This is what I was wondering too. how do you know mL/mg or inverse... then again I am horrible with math and have dyslexia @@vet-techbites22
@niajahjade1452 Жыл бұрын
Thank you so much! Super helpful
@vet-techbites22 Жыл бұрын
I am glad! Thanks for watching!!
@katherinemanning3789 Жыл бұрын
If your still posting, I would love some VTNE prep videos, your great!
@vet-techbites22 Жыл бұрын
Hello! This has actually been on my list to do! I have my notes made for this video, so I will add some here along with some links to helpful sites! I recently got a new job that'll allow me to spend time on this channel again, so I am hoping to get more videos out soon! 1: Actually go and study! This might be an oversimplification, but it really is an important thing to remember. Part of it is just sitting down and taking the time to study for a few hours. No distractions or procrastination, actually go and study! 2: Use external study sites, like VetTechPrep or pocketprep. These are great because everything pertaining to the VTNE has been organized by section for ease of access. These also typically have practice VTNE tests that you can take. The only downside is that they tend to be a little cost-prohibitive. I have not personally used them, however they have helped MANY people over the years, as long as you can afford it. 3: Textbooks for VTNE prep. Books may seem like a simple answer, but they've been doing the job for many years, so we should take advantage of them! There are review Q&A books that specifically prepare you for the VTNE. I used Review Questions&Answers for veterinary technicians by Colville, and I saw many of these exact questions and answser pools, verbatim, on my VTNE. So I highly recommend these. My book also came with software that allowed me to take randomized practice VTNE exams on my computer, so I took many per day so I was not nervous for my test because I had been taking the VTNE for weeks. 4: Flashcards / Flashcard services. Flashcards can be extremely beneficial when it comes to remembering things. Repetition, repetition, repetition. I found this specifically helpful for identifying things in parasitology and hematology. You can create your own flashcards at home, or there are services online that you can create free flashcards to use on the go from your phone. I used Chegg.com and it helpd me out a lot when studying for tests. 5: Study groups / Team someone else. I found that explaining things to others helped me cement things for myself. Having other people around that are learning the same things as you can make it much easier overall. You can quiz eachother, make study guides, and try teaching the other person something or explain things in different ways to expand your understanding. Often times, when I did a whiteboard session teaching someone else something, I did not have to study that because I had no issue remembering it. Tips for actually taking the VTNE -Eat well and get plenty of sleep. Your brain needs rest as much as your body does. If you deprive yourself of food or sleep, you won't be setting yourself up for success. Eat well and go to bed early the night before. Eat a good breakfast after waking up as well, and nothing unhealthy! -Arrive at the testing center VERY EARLY and study your worst subjects in the car before you go in. Just try to keep it in your head until you get inside and sat down -Make yourself a study guide of your problem areas. They will provide you with a pencil and a few sheets of paper, and you can use them to your advantage. Take what you just studied in your car and write it down on your papers, and make some notes for anything else you feel uncomfortable on. They give you plenty of time, so take a good 10-15 minutes and get things down. This will allow you to relax and not be afraid of questions pertaining to that subject, so you can focus on each question more. -Try not to overthink your answers. Think about it for a second, but dont obsess over them. You either know them or you don't. You can always make a note of that question and come back to it later. You should go through each question briefly at the end to make sure you didn't make any obvious mistakes. I found 2-3 questions on my test that I marked completely wrong, and wouldn't have caught them had I not gone back and looked again. -Do your best. It goes without saying, but you can only do the best that you can do. Try to think clearly about each question, and you will crush that test! www.amazon.com/Mosbys-Comprehensive-Review-Veterinary-Technicians/dp/0323596150/ref=pd_bxgy_img_sccl_1/146-9021233-3445366?pd_rd_w=m4DXQ&content-id=amzn1.sym.7757a8b5-874e-4a67-9d85-54ed32f01737&pf_rd_p=7757a8b5-874e-4a67-9d85-54ed32f01737&pf_rd_r=T93J86EG7HABFQVBNRSV&pd_rd_wg=a92br&pd_rd_r=9b80f170-a29f-47b0-a96c-2731ecbb9318&pd_rd_i=0323596150&psc=1 www.amazon.com/Review-Questions-Answers-Veterinary-Technicians/dp/0323759874/ref=sr_1_1?crid=26EHCAZ2JDEOL&keywords=review+questions+and+answers+for+veterinary+technicians&qid=1655944248&sprefix=review+questios+and+answers+for+veterinaary+technicians%2Caps%2C70&sr=8-1 www.chegg.com/ www.pocketprep.com/exams/aavsb-vtne/ www.vettechprep.com/ www.vettechcolleges.com/blog/guide-to-vtne I hope this helps, thanks for watching!
@katiemarden8866 Жыл бұрын
Is there a way you can break down and explain how to dilute KCL?
@vet-techbites22 Жыл бұрын
Hello! Absolutely! So KCL is notoriously confusing to people since it's concentration is meq/mL, and meq is something that we don't really use aside from this 1 scenario. But if you think about it in terms of "It is just a concentration, same as mg/mL", it becomes so simple. SO let's say your DVM orders LRS with 20meq KCL/L. If this were a drug and it was mg/L, you would just divide the dose by the concentration, right? We just do the same thing here! So since KCL's concentration is typically 20meq/10mL, or 2meq/mL, we will divide our dose by the concentration: 20meq(dose) divided by 2meq/mL (concentration) = 10mL, so you'd add 10mL to your bag. A simple/cheater way would be to simply divide the number of meq you need by 2, and it'll give you your answer every time ---Disclaimer to ALWAYS confirm your concentration before drawing up KCL as giving too much can be fatal. I hope this helped, but please let me know if not and I can definitely help you with it! Thanks for watching!
@proud2Bsmall Жыл бұрын
Thanks, great video. One question. When you add the medications to the bag do you need to remove the amount you're adding from the fluids?
@vet-techbites22 Жыл бұрын
Since adding meds to the IVF bag tends to be a small quantity, it's not necessary to remove that volume before we add. The reason we remove volume when adding dextrose is because the calculations are based upon percentages and large volumes are being added.
@brittanycrum4277 Жыл бұрын
Dude this video helped me so much! it is way better explained the way you did it.
@vet-techbites22 Жыл бұрын
I'm so glad :) thanks so much for your comment, and thank you for watching!
@ashfrye3431 Жыл бұрын
Thank you for this!
@sawwantha Жыл бұрын
Just wanted to say- you have helped me tremendously with CRIs!!!! I’m taking the VTNE in a few weeks and I feel so much more prepared since watching your videos.
@vet-techbites22 Жыл бұрын
I love this!! Thank you so much for sharing, I really appreciate it; and I'm so glad you feel more prepared! Good luck on your test!!! Thanks for watching!
@greergabor1121 Жыл бұрын
what happened to the 200mcg/hr dose in the beginning? other than that i followed everything perfectly yay thank you so much i’m taking the vtne in november
@redqueen8130 Жыл бұрын
You're amazing! <3
@letyp9500 Жыл бұрын
THANK YOU SO MUCH! I’m a current student and they teach us dimensional analysis. I just watched this before a final and OMG I cannot believe how easy you made this for me. I hate dimensional analysis btw lol this is exactly how my brain works
@vet-techbites22 Жыл бұрын
Wow! I'm glad it was so helpful for you!! Thank you for watching :) My brain works a little different, so its nice to know that we're not alone!
@courtneywatkins3107 Жыл бұрын
You’re a life saver not my brain knowing how to math now🥲
@nailaaqbal1420 Жыл бұрын
I seriously can't thank you enough! You have made this so much easier to grasp!! Can you please keep making more calculation questions? They are so, so helpful!
@vet-techbites22 Жыл бұрын
I'm so glad this helped you!!! Thanks so much for watching and for commenting, I will def try to get more out there!
@justsomegirlwithamustache2 жыл бұрын
I love how clear you are, I'm hoping my college professors will be just as helpful lol
@vet-techbites222 жыл бұрын
Thanks so much for your comment! I wish you the best of luck in school!!
@Justmeandthetrees2 жыл бұрын
I've watched so many CRI videos but yours by far has been the easiest for me to understand. Thank you!
@vet-techbites22 Жыл бұрын
Wow, I'm so glad! Thanks so much for your feedback! Sometimes we just have to see things in a different way to understand :) Thanks for watching!
@rebeccacastro10552 жыл бұрын
So helpful!! One of the only videos that actually explains this so well!
@vet-techbites22 Жыл бұрын
Thanks so much!! I really appreciate that :) Thanks for watching!
@leticiaanaya86532 жыл бұрын
I like the information, he explained well.
@vet-techbites22 Жыл бұрын
I am glad, thank you very much!!! Thanks for watching!
@stenello2 жыл бұрын
Thank you! I take my VTNE today and have been having such difficulty with this. So easy now!!
@vet-techbites222 жыл бұрын
Thank you so much for watching!!! I am glad you found my video helpful! I wish you THE ABSOLUTE BEST LUCK!! I believe in you :)
@sabrinajimenez53732 жыл бұрын
Thank you so much! I have been struggle with this and was getting super frustrated. The why you explained this really helped!
@vet-techbites222 жыл бұрын
Thank you so much for watching and for your comment! I am very glad I was able to help you :)
@Velodust2 жыл бұрын
I was given a problem like this, but they want us to calculate without removing any fluid from the bag
@vet-techbites22 Жыл бұрын
That seems strange, but if I were presented with this, I would do a proportion for what it would be with. However, best practice is to remove the volume you're adding, it's a negligible loss
@kyndalyoung2 жыл бұрын
I really like how you did this! Thank you!
@vet-techbites222 жыл бұрын
Thank you so much!! Thank you for watching :)
@kyndalyoung2 жыл бұрын
@@vet-techbites22 no problem! Shared with some friends and teachers too! Love helping a vet tech, and L O V E for someone to make learning simple!
@vet-techbites222 жыл бұрын
@@kyndalyoung this is why our community is the best ❤️. I appreciate you!
@katbryant84142 жыл бұрын
I have adhd and have been STRUGGLING to understand this. Thank you so much for this helpful video!
@vet-techbites222 жыл бұрын
I'm so glad!!! Thank you so much for watching and for your comment! 😊
@EshStarr67832 жыл бұрын
I am An 😮 👏👏👏👏 New Girl question.....what do u mean AND DONT FORGET TOO ADD WHAT U TOOL? THANKS
@vet-techbites222 жыл бұрын
Hello! Whenever we are adding dextrose to IVF, we have to first remove the amount that we are going to be adding. If you think about it, if we just added 50-100mL of dextrose, then there would be 1,050-1,100mL in the bag, not 1L, so it throws the ratio off. So, before we add it, we first remove that amount to keep the total volume the same :)
Пікірлер
I appreciate you making the video but the lack of organization with labeling and making things neater makes this confusing .
Thank you so much :) this makes it so much easier to understand, just need to know why with Lidocaine and Ketamine do we use X per minute and not divided by like we do per hour formula please. Like why Xs per minute 60seconds instead of divide by like we do for Fentanyl. I know this video is 3 years old already so will be very surprised if you can answer but massively appreciate if you could, I'm in final year of veterinary nursing school and need to understand the formula properly.
Hello! I try to answer when I can haha :D. So for some medications, that is just typically how they are dosed out. If you look up Lidocaine, Fentanyl, and Ketamine in Plumb's drug handbook, or another source that gives dosages for injectable drugs, you will usually see them dosed out like this; so I just tried to emulate that, as it mirrored what I encountered in a clinical setting over many years. However, if you wanted to simplify it to hours beforehand, you technically can. For instance: If a lidocaine CRI (20mg/mL) for a 5kg patient was dosed at 20mcg/kg/min, you could multiply that 20mcg/kg/min x 60min =1,200mcg/hr, which is the same as 1.2mg = 1.2mg/kg/hr, and then do your math like that afterwards. Both =6mg/hr. However, when you get into more obscure numbers that have several numbers after a decimal point, you can run in to some pretty big rounding variations. So I believe this is why some medications are dosed out like that if they have a tight margin of safety, or are extremely potent (only a small amount is needed to produce a drastic effect) like ketamine. Fentanyl, though highly potent and heavy, is rapidly eliminated and reversible, which makes it way more safe and have a wider margin of error. I usually recommend going with whatever dosage is given to you, and then just math it from there, it's not super important whether its mcg/kg/min vs mg/kg/hr vs etc. Just take the dosage in front of you and go with it :) I hope this helped, good luck in your final year!!! Feel free to check out my other videos in case they may be helpful too!
@@vet-techbites22 hallelujah 🙌 thank you for answering my question and I've saved your other videos to rewatch and study as well. I wonder how many animals lives you have already helped save just by sharing your content! God bless you ❤
@@DDtona93 Thank you so much! That made me feel really good :D I'm glad I was able to help, I'm wishing you the absolute best of luck!!!
i know this sounds silly, but on the cross-multiplication part, an you explain why lrs is on the top and mg is on the bottom, why x is on bottom/vs top? Is it always bigger number over the smaller number, or is there some other reasoning to this?
Hello! Not silly at all :). So you can really make the X be on top or bottom, which ever one you want. But the key is to keep that consistent throughout your problem. For instance at 2:43, I wrote that I had 720mL/24mg and I am trying to find how many mg I need for 1,000mL, so since I have mL/mg the opposite side of that equation has to stay that way and therefore X is on bottom. However if I wrote it as 24mg/720mL = xmg/1000mL, the X would then be on top and the answer remains the same :) Since we are dealing with ratios/proportions, as long as the units are kept consistent (top v bottom), the math should all check out in the end.
Re Lidocain, you explained grams as %.. % = g/100ml Then jumped to 20mg/ml [2000mg/100ml]. Jumped a step there.. But very helpful! Thanks!
Hello, yes I actually explain this in more detail during the percent solutions video; was trying to keep it focused just on the CRI portion :)
Hi, the video is very helpful. For the ketamine, how does this work if I’m using a syringe pump. 0.29mls added to what?
I would actually skip the portion about how much fluid required per day and use this formula: Drug dose rate (mg/kg/hr) x weight ( (kg) x Fluid bag volume ( mls) ÷ Fluid rate in (ml/hr)÷ Drug concentration ( mg/ml) = drug volume required to be put in bag .... Fignocaine ( 0.03 x 60) x 24 x 750 ÷ 60 ÷ 20 = 27 cc of lignocaine ( 20mg/ml = 540mg )
Hey, that is awesome! Just shows that there's a lot of ways it can be done :) I think explaining the rationale is best here when trying to show others, as all of the different things to keep track of can be hard for a lot of people, myself included lol. This method may be best for you, and your answers are probably always correct! I personally choose to do it this way, because it's how I understand best and I can keep track of everything, which can be hard sometimes :)
future tech here! my anesthesiology course just started, and this one video has changed my life 😅 thank u!
I'm so glad!! You are most welcome, I'm glad you found it helpful!
Hi Gerry! Unsure if you remember me from work, but great videos! They are helping me a lot in school! :)
Hey Camryn! Of course I remember you, haha. I'm so glad they're helpful for you!! I've never had any doubts that you were going to absolutely CRUSH in your school :). Wishing you the absolute best!!
Thank you for making math so simple to understand. I'm taking my VTNE on Monday, please send me positive vibes!
Omg, sending ALL OF THE VIBES! You've got this!! Best recommendation: study your areas that make you anxious right before you go in, and when they seat you they provide you with a pencil and some paper, use the first 5-10 minutes and jot down everything you can think of on the topics that make you anxious, and then take your test nice and comfortable, with your study guide you just made :). Review your answers before submitting the test in case you accidentally picked an obvious wrong answer- I caught 2 on my test!! Wishing you the best!!
@@vet-techbites22 Thank you soooo much for this helpful advice!!!! I have a ton of notes from your CRI videos that I will be reviewing and writing down before the test!!!!
I’m in a distance learning vet tech program right now and have been struggling with CRIs. Your videos really help break it down in a way I can understand. I was pausing the video to work out the problem and then would unpause to see if I got it right and I did! Thank you so much!
I love to hear these kind of things!! I'm glad you found it helpful :) keep up the great work!
This is the first time I've seen someone explain this using cross multiplication and also thank god, because that's my secret math weapon. I spent all week struggling with this and one eight minute video gave me that eureka moment. Thank you!
Hahaha whenever possible, I always try to use proportions for that exact reason, they just make it so easy!! Multiply, divide, and done lol. I'm glad I could help :)
Love your videos, but wanted to point out that at the end of the first CRI dilution at 6:37, to sum it up, you accidentally said "we need ***0.72 mL Ketamine and 3.928 mL diluent..." when you should have said .072 mL Ketamine. Thank you for what you do!
Thank you so much this was helpful 😭!!
Hello I’m confused on how you turn the 2% of lidocaine into the 20mg/ml
Hello! So whenever we think about percents, remember that %= grams per 100mL (per-CENT, "cent" means 100). So 2%= 2g/100mL, or 2,000mg/100mL. Then simplify like normal and you'll be left with 20mg/mL. An easy cheater way to do it, is to simply move the decimal place 1 spot to the right, so 2%=20mg/mL. I hope that helped, thanks for watching!
Yes it did thank you for explaining!
Thank you so much for your effort ❤
Thank you for this!
Just wated to throw out a thank you :) Im currently in vet school, and math has always been an area where I struggled immensely. But you seriously have made pharmacology math less stressful and terrifying. Thank you
Hey, I'm so glad you found it helpful!! I wish you the best in Vet School!! Thank you for watching and for your kind words ❤️
33.3mg(reglan)/1000ml of lrs regardless of any weight ☺️
Thank you so so much! I take the VTNE soon and have struggled with this for so long trying to use that equation. The way you explained it finally made it make sense to me!!
This video really helped me understand. Thank you.
I'm so glad :). Thanks for watching!
I know this video is a few years old but thank you so much for this! I have always struggled with concentrations but you’ve simplified so much. Really appreciate it
Thank you! Finally someone who helps me understand better.
Thank you for this very helpful! I was wondering for your ketamine example you did it differently that the lidocaine one and I did the same as your lidocaine one and still got the same answer as you so i wasn't sure if it mattered that i did it differently. I did 15mcgx32.4kg = 486mcg then /1000 = 0.49mgs/min 0.49mgsx60= 29.4mgs/hr 29.4mgs/100mgs= 0.29mls/hr. You however did 486mcg x 60 and got 29160mcg then /1000 and ect... just wondering if it matters which way I do it between the two as well as if there was a reason you did the Lidocaine the way I mentioned and then changed for Ketamine. Thank you :)
Hello! So I will say that there are many ways to math lol. You can do these equations several ways, though I'm not sure if I intended to switch up (video was done a while back), but either way the answer will be the same. Whether you take the mcg/min x 60 to get the mcg/hr then convert to mg/hr, or convert to mg/min and then x 60 you should get the same answer. Sometimes I will convert early if it's a huge number of mcg. To be honest, I have ADHD and likely switched it up without realizing haha. But like I said, either way you'll get the same answer. Occasionally you will have a slightly different decimal number depending on when you convert, but it is rarely significant. If you got the same answer a different way, you're good :). There are MANY ways to math, this is just how I understand it best and how I find most efficient while working in a busy hospital! Being able to adjust the steps (slightly) is just a bonus. Since unit conversions are equal (486mcg =0.486mg), the point in which you convert isn't super important. The important bit to note here is that when we round (0.486 to 0.49) is when variables start to take place that can sometimes, ever so slightly, change our end result. (Like if you round that, and then the next step, etc. The answer will be slightly different than if you only rounded at the end. So I would recommend not rounding anything until the last step to keep things as accurate as possible :). I'm glad you found it helpful, thanks for watching!
You can also check your answer by dividing the amount (mg or mcg) of each drug by the total volume of the cri to get the concentration of each and cross reference that with their mg/mcg per hour to see if it matches. At 1mL/hr it'll be the exact same. At 2mL/hr it'll be half, etc. Takes a little more math, but the peace of mind is nice if you're ever questioning :)
Thank you so much am doing on the job training and this helps so much.
I'm so glad you found it helpful! Thanks for watching :)
I needed a refresher on the math and this helped tremendously. By the way this is Tony over at Crossroads. Surprised when I saw your face in the video lol
Haha that's awesome, what's up Tony!!! I was also surprised when I saw your name in my notifications lol. I'm glad the video was able to help you out! It's cool to know that my videos can help veteran techs like you as well ❤️
But we're not gonna put 2ml fentanyl directly, we need to put it in a solution, so how we calculate it within a solution ?
Hello, so there's not really many contraindications to using straight fentanyl, in fact I have mostly used it without dilution for a majority of my career; so you can definitely give just fentanyl. However, if you need to expand a smaller volume or have a more usable number, please see Part 2 for dilutions! kzread.info/dash/bejne/o4Zo04-AornTZrA.html I hope you enjoy, please let me know if you have questions and I can help out. Thanks for watching!
@@vet-techbites22thank you, what's the rate that you recommend ?
@@medguendouz8050 You're welcome! There isn't really a "one size fits all" rate for Fentanyl, it depends on the patient, procedure, and circumstance. In general, for routine Surgical procedures, I have used 3-5mcg/kg/hr, but have had many circumstances that took that to 20-30mcg/kg/hr. But it's on the DVM to make those calls, we aren't able to dictate drug protocols. I recommend joining "Veterinary Anesthesia Nerds" on Facebook, they are absolutely amazing and have tons of anesthetic drug protocol information and rationale!
And my question is does 2.2 when times it or divide would the number stay the same 2.2? 1:09
Hello! I am not sure I am understanding correctly, but multiplying or dividing by 2.2 is only to covert pounds (lb) to kilograms (kg). So to convert lb to kg you divide by 2.2, but to convert kg to lb you multiply by 2.2. Since there is 2.2kg per 1lb, you can also do a ratio/proportion to obtain this answer. I hope this answered your question, but if not please message me with picture of your problem and I can help with it! Thanks for watching!
Can you help me on my homework? It’s on this ?
How do you know which one to place at the top or bottom? like the drugs in 24 hours or fluids in 24 hours
Hello! I am assuming you mean while doing a proportion to determine the amount of drug to add to the IVF bag? So it is sort if up to you on how to structure your math problems, but the important thing is to keep it consistent once you start. But since things are usually "per 24hr", it is easier for me to use this way. I hope this answered your question, but please let me know if not, and I can help with a little clarification! Thanks for watching!
This is what I was wondering too. how do you know mL/mg or inverse... then again I am horrible with math and have dyslexia @@vet-techbites22
Thank you so much! Super helpful
I am glad! Thanks for watching!!
If your still posting, I would love some VTNE prep videos, your great!
Hello! This has actually been on my list to do! I have my notes made for this video, so I will add some here along with some links to helpful sites! I recently got a new job that'll allow me to spend time on this channel again, so I am hoping to get more videos out soon! 1: Actually go and study! This might be an oversimplification, but it really is an important thing to remember. Part of it is just sitting down and taking the time to study for a few hours. No distractions or procrastination, actually go and study! 2: Use external study sites, like VetTechPrep or pocketprep. These are great because everything pertaining to the VTNE has been organized by section for ease of access. These also typically have practice VTNE tests that you can take. The only downside is that they tend to be a little cost-prohibitive. I have not personally used them, however they have helped MANY people over the years, as long as you can afford it. 3: Textbooks for VTNE prep. Books may seem like a simple answer, but they've been doing the job for many years, so we should take advantage of them! There are review Q&A books that specifically prepare you for the VTNE. I used Review Questions&Answers for veterinary technicians by Colville, and I saw many of these exact questions and answser pools, verbatim, on my VTNE. So I highly recommend these. My book also came with software that allowed me to take randomized practice VTNE exams on my computer, so I took many per day so I was not nervous for my test because I had been taking the VTNE for weeks. 4: Flashcards / Flashcard services. Flashcards can be extremely beneficial when it comes to remembering things. Repetition, repetition, repetition. I found this specifically helpful for identifying things in parasitology and hematology. You can create your own flashcards at home, or there are services online that you can create free flashcards to use on the go from your phone. I used Chegg.com and it helpd me out a lot when studying for tests. 5: Study groups / Team someone else. I found that explaining things to others helped me cement things for myself. Having other people around that are learning the same things as you can make it much easier overall. You can quiz eachother, make study guides, and try teaching the other person something or explain things in different ways to expand your understanding. Often times, when I did a whiteboard session teaching someone else something, I did not have to study that because I had no issue remembering it. Tips for actually taking the VTNE -Eat well and get plenty of sleep. Your brain needs rest as much as your body does. If you deprive yourself of food or sleep, you won't be setting yourself up for success. Eat well and go to bed early the night before. Eat a good breakfast after waking up as well, and nothing unhealthy! -Arrive at the testing center VERY EARLY and study your worst subjects in the car before you go in. Just try to keep it in your head until you get inside and sat down -Make yourself a study guide of your problem areas. They will provide you with a pencil and a few sheets of paper, and you can use them to your advantage. Take what you just studied in your car and write it down on your papers, and make some notes for anything else you feel uncomfortable on. They give you plenty of time, so take a good 10-15 minutes and get things down. This will allow you to relax and not be afraid of questions pertaining to that subject, so you can focus on each question more. -Try not to overthink your answers. Think about it for a second, but dont obsess over them. You either know them or you don't. You can always make a note of that question and come back to it later. You should go through each question briefly at the end to make sure you didn't make any obvious mistakes. I found 2-3 questions on my test that I marked completely wrong, and wouldn't have caught them had I not gone back and looked again. -Do your best. It goes without saying, but you can only do the best that you can do. Try to think clearly about each question, and you will crush that test! www.amazon.com/Mosbys-Comprehensive-Review-Veterinary-Technicians/dp/0323596150/ref=pd_bxgy_img_sccl_1/146-9021233-3445366?pd_rd_w=m4DXQ&content-id=amzn1.sym.7757a8b5-874e-4a67-9d85-54ed32f01737&pf_rd_p=7757a8b5-874e-4a67-9d85-54ed32f01737&pf_rd_r=T93J86EG7HABFQVBNRSV&pd_rd_wg=a92br&pd_rd_r=9b80f170-a29f-47b0-a96c-2731ecbb9318&pd_rd_i=0323596150&psc=1 www.amazon.com/Review-Questions-Answers-Veterinary-Technicians/dp/0323759874/ref=sr_1_1?crid=26EHCAZ2JDEOL&keywords=review+questions+and+answers+for+veterinary+technicians&qid=1655944248&sprefix=review+questios+and+answers+for+veterinaary+technicians%2Caps%2C70&sr=8-1 www.chegg.com/ www.pocketprep.com/exams/aavsb-vtne/ www.vettechprep.com/ www.vettechcolleges.com/blog/guide-to-vtne I hope this helps, thanks for watching!
Is there a way you can break down and explain how to dilute KCL?
Hello! Absolutely! So KCL is notoriously confusing to people since it's concentration is meq/mL, and meq is something that we don't really use aside from this 1 scenario. But if you think about it in terms of "It is just a concentration, same as mg/mL", it becomes so simple. SO let's say your DVM orders LRS with 20meq KCL/L. If this were a drug and it was mg/L, you would just divide the dose by the concentration, right? We just do the same thing here! So since KCL's concentration is typically 20meq/10mL, or 2meq/mL, we will divide our dose by the concentration: 20meq(dose) divided by 2meq/mL (concentration) = 10mL, so you'd add 10mL to your bag. A simple/cheater way would be to simply divide the number of meq you need by 2, and it'll give you your answer every time ---Disclaimer to ALWAYS confirm your concentration before drawing up KCL as giving too much can be fatal. I hope this helped, but please let me know if not and I can definitely help you with it! Thanks for watching!
Thanks, great video. One question. When you add the medications to the bag do you need to remove the amount you're adding from the fluids?
Since adding meds to the IVF bag tends to be a small quantity, it's not necessary to remove that volume before we add. The reason we remove volume when adding dextrose is because the calculations are based upon percentages and large volumes are being added.
Dude this video helped me so much! it is way better explained the way you did it.
I'm so glad :) thanks so much for your comment, and thank you for watching!
Thank you for this!
Just wanted to say- you have helped me tremendously with CRIs!!!! I’m taking the VTNE in a few weeks and I feel so much more prepared since watching your videos.
I love this!! Thank you so much for sharing, I really appreciate it; and I'm so glad you feel more prepared! Good luck on your test!!! Thanks for watching!
what happened to the 200mcg/hr dose in the beginning? other than that i followed everything perfectly yay thank you so much i’m taking the vtne in november
You're amazing! <3
THANK YOU SO MUCH! I’m a current student and they teach us dimensional analysis. I just watched this before a final and OMG I cannot believe how easy you made this for me. I hate dimensional analysis btw lol this is exactly how my brain works
Wow! I'm glad it was so helpful for you!! Thank you for watching :) My brain works a little different, so its nice to know that we're not alone!
You’re a life saver not my brain knowing how to math now🥲
I seriously can't thank you enough! You have made this so much easier to grasp!! Can you please keep making more calculation questions? They are so, so helpful!
I'm so glad this helped you!!! Thanks so much for watching and for commenting, I will def try to get more out there!
I love how clear you are, I'm hoping my college professors will be just as helpful lol
Thanks so much for your comment! I wish you the best of luck in school!!
I've watched so many CRI videos but yours by far has been the easiest for me to understand. Thank you!
Wow, I'm so glad! Thanks so much for your feedback! Sometimes we just have to see things in a different way to understand :) Thanks for watching!
So helpful!! One of the only videos that actually explains this so well!
Thanks so much!! I really appreciate that :) Thanks for watching!
I like the information, he explained well.
I am glad, thank you very much!!! Thanks for watching!
Thank you! I take my VTNE today and have been having such difficulty with this. So easy now!!
Thank you so much for watching!!! I am glad you found my video helpful! I wish you THE ABSOLUTE BEST LUCK!! I believe in you :)
Thank you so much! I have been struggle with this and was getting super frustrated. The why you explained this really helped!
Thank you so much for watching and for your comment! I am very glad I was able to help you :)
I was given a problem like this, but they want us to calculate without removing any fluid from the bag
That seems strange, but if I were presented with this, I would do a proportion for what it would be with. However, best practice is to remove the volume you're adding, it's a negligible loss
I really like how you did this! Thank you!
Thank you so much!! Thank you for watching :)
@@vet-techbites22 no problem! Shared with some friends and teachers too! Love helping a vet tech, and L O V E for someone to make learning simple!
@@kyndalyoung this is why our community is the best ❤️. I appreciate you!
I have adhd and have been STRUGGLING to understand this. Thank you so much for this helpful video!
I'm so glad!!! Thank you so much for watching and for your comment! 😊
I am An 😮 👏👏👏👏 New Girl question.....what do u mean AND DONT FORGET TOO ADD WHAT U TOOL? THANKS
Hello! Whenever we are adding dextrose to IVF, we have to first remove the amount that we are going to be adding. If you think about it, if we just added 50-100mL of dextrose, then there would be 1,050-1,100mL in the bag, not 1L, so it throws the ratio off. So, before we add it, we first remove that amount to keep the total volume the same :)