Question

A child requires 20 grams of IV mannitol stat. You have mannitol 10% in stock. How many mL do you need?

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Answer 1

To determine how many mL of a 10% mannitol solution you need to administer to a child, you will need to use the following formula:

(desired dose in grams) / (concentration of mannitol in grams/100 mL) = (volume of solution in mL)

In this case, the desired dose is 20 grams, and the concentration of mannitol is 10% (or 0.1 in decimal form).

20 g / 0.1 g/100mL = 200 mL

So you need 200 mL of 10% mannitol solution to administer 20 grams of mannitol to the child.