Dilution and Concentration Calculations in Pharmacy | 5 Key Examples Solved

[@dean3188]

Thank you so much for this, really helps to visualize the problems and ultimately understand them better

[@PharmaceuticalCalculationsEasy]

Thank you Déan for watching and for the kind comment.

[@Mrs.Shaikh-786]

@@PharmaceuticalCalculationsEasy I need help sir
Question: A physician orders diphenhydramine (Benadryl) 50 mg IM q4 h. The available stock is 25 mg/2 mL. Calculate the amount to dispense?

[@topeoluwafemi2773]

Heaven reward you real big Dr. You're making Pharmaceutical calculations a walk in a park for us. Thanks a bunch!

[@PharmaceuticalCalculationsEasy]

Thank you Tope for watching and for the kind words. Keep up the good work.

[@rachmchugh1984]

Saving this! Currently learning for RN course

[@PharmaceuticalCalculationsEasy]

Thank you @rachmchugh1984 for watching and for the comment. Let us know if there are any topics you will like covered.

[@tarkasify]

Q3 for the ear drops can be also solved by C1V1=CfVf
C1V1= 75%xV1
CfVf=50%x60ml
V1=50x60/75=40mL alcohol,
Then 60mL(total volume)_40mL(alc)=20mL water 🌊

[@PharmaceuticalCalculationsEasy]

You are absolutely correct TK. You can solve question 4 using the approach you shared in the comment. Thank you for watching and for actively supporting the channel.

[@prantone.]

Thank you! Really helped on point. Good quality of sound and image as well.

[@PharmaceuticalCalculationsEasy]

Glad you found the video helpful, Prantone. Thank you for watching and for the comment.

[@ZeastyHD]

Really Good video, really helped me understand the whole w/v and w/w meanings thanks so much

[@PharmaceuticalCalculationsEasy]

Glad you found the video helpful. Thank you Lemons Beats for watching and for the comment.

[@philipraphael3676]

Already put my bell on..will be there to watch !

[@PharmaceuticalCalculationsEasy]

Thank you Philip for watching and for your continuous and amazing support of the channel. It is truly appreciated.

[@yibelamelakeselam2142]

It's great 👍
Keep it up

[@PharmaceuticalCalculationsEasy]

Thank you Yibela for watching and for the kind comment.

[@ElaineQueen]

Thank you so so much😭🥺

[@PharmaceuticalCalculationsEasy]

Thank you @user-ol6nn1jx4b for watching and for the comment.

[@mx5083]

Ejemplo 2. Yo lo resolví así, En 2000 ml hay 200 g de acido clorhídrico, ya que está al 10%, en 100 ml de solución hay 10 g en 2000 ml hay 200 g de HCl, al agregar los 400 ml de la solución y quedar al 10%, significa que agregamos 200 g de HCl, la solución pesa 400*1.16=464 g si fuera todo ácido clorhídrico sería el 100%, pero de esos 464 g hay 200 g de HCl que sería el 43.1% o también en 464 g de solución hay 200 g en 100 g de solución hay 43.1 g de HCl o sea 43.1% de HCl-

[@lambadic8298]

why does the amount of drug remain the same if a small volume is removed froma bigger volume?

[@dilanaosbourne6654]

why is it that in certain question we convert using specific gravity in the beginning (phosphoric acid question) and in others we convert right in the end (eg in the 400ml conc HCL question) because if we solve it in the beginning and end gives us two different answers!

[@Melissathebrand]

104.65 percent??? Is a percent meant to be more than 100?

[@sakinaabid6670]

Someone please explain how C1 =50% in question 2 plx

[@yibelamelakeselam2142]

C1V1 = CfVf
C1 ×400ml= 10 %w/v ×2000ml
10%w/v×2000ml over all divided by 400ml
# 50%w/v

[@husammohammed1287]

We want in Arabic translation

[@PharmaceuticalCalculationsEasy]

Thank you Husam for watching and for the comment. We will work on the Arabic translation of the videos very soon.

[@tarkasify]

حسام، ممكن اساعدك بالترجمه،
Hussam, I can help you with translation m

[@husammohammed1287]

@@tarkasify how you can

[@tarkasify]

@@husammohammed1287 اكتب ايميلك هنا وسؤالك وأنا ارسلك، تكرم