Pharmacy Math

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KCL Elixir 25mEg po BID. Avail: KCL Elixir 30 mEg=15mL. How many mL needed per dose? Thank you for any help you can give me. Show your math operation for this problem. I also need some help with other problems

Amoxicillin 300mg po BID X 10 days. Avail: Amoxicillin 250mg=5mL. How many mL needed per dose?

Cefactor Oral Susp. 250mg po TID. 375MG=5mL. How many mL needed per dose?

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KCL Elixir 25mEg po BID. Avail: KCL Elixir 30 mEg=15mL. How many mL needed per dose? Thank you for any help you can give me. Show your math operation for this problem. I also need some help with other problems

Amoxicillin 300mg po BID X 10 days. Avail: Amoxicillin 250mg=5mL. How many mL needed per dose?

Cefactor Oral Susp. 250mg po TID. 375MG=5mL. How many mL needed per dose?

How about you show us yours first.:whistling:

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KCL Elixir 25mEg po BID. Avail: KCL Elixir 30 mEg=15mL. How many mL needed per dose? Thank you for any help you can give me. Show your math operation for this problem. I also need some help with other problems

Amoxicillin 300mg po BID X 10 days. Avail: Amoxicillin 250mg=5mL. How many mL needed per dose?

Cefactor Oral Susp. 250mg po TID. 375MG=5mL. How many mL needed per dose?

If you lay out the formula here, how you're setting it up, we can see what you might be doing wrong. If you're doing this and not getting the right answer seeing how you are working on it would help us to help you.

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Let's see what you've tried to work out so far. You aren't likely to find many nurses willing to do your homework for you. ;)

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Specializes in Med-Tele; ED; ICU.
KCL Elixir 25mEg po BID. Avail: KCL Elixir 30 mEg=15mL. How many mL needed per dose?
This is a simple ratio problem.

For example 1:2 :: 2:x, or as an equation 1/2 = 2/x

You can either find x by inspection: multiply the numerator and denominator of (1/2) by 2 to get

(2/2)(1/2) = 2/x ... 2/4 = 2/x so x must be four

or solve the equation directly: (1/2)(x)=2 ... (x)=(2)/(1/2) ... x=4

in your case: 30 mEq/15 mL = 25 mEq/x

Note: Potassium (K) is not dosed in units of grams but rather as equivalents which relates the weight to the valence charge of the cation.

Thank you for any help you can give me. Show your math operation for this problem. I also need some help with other problems
You're welcome.

Amoxicillin 300mg po BID X 10 days. Avail: Amoxicillin 250mg=5mL. How many mL needed per dose?
Another simple ratio.... 250 mg / 5 mL = ???

Cefactor Oral Susp. 250mg po TID. 375MG=5mL. How many mL needed per dose?

And yet another simple ratio problem.

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Typically when a student asks other people to give a detailed accounting ("show your work"), they are asking essentially to have other people do their homework for them.

As the OP did not get anyone to do his homework for him he is now gone. Unless, of course, he was waiting for someone to post the answers he needs and they are due next week :-)

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What you have/what you need multiply by measurement needed. To not confuse you, it's 300mg/250mg x 5ml = 6.2ml

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