Question

Morphine sulfate grain 1/4 po is ordered. On hand is Morphine sultate 10 mg tablets. How many tablets will you give?

Answer 1

Answer:

1 tablet and a half.

Explanation:

1 mg is equivalent to 1/60gr

              or

1 gr is equivalent to 60 mg.

Since you need to give 1/4 gr of morphine sulfate, you need to give 1/4 of 60mg. If you will calculate that, you will need to give 15 mg of morphine sulfate. Since the tablets come in 10 mg, you will need to give 1 tablet and a half.

You can also compute it this way:

$\dfrac{1}{4}gr\times \dfrac{60mg}{1gr} = \dfrac{60mg}{4}=15mg$

$15mg\times \dfrac{1 tablet}{10mg} = 1.5 tablets$