A client is prescribed docusate sodium (Colace) 0.3 grams. How many capsules containing 100 mg each should the nurse administer?

To determine the number of capsules of docusate sodium (Colace) to administer, it is essential to convert the prescribed dosage from grams to milligrams. The prescription is for 0.3 grams, which can be converted to milligrams, knowing that 1 gram is equal to 1000 milligrams. Therefore, 0.3 grams is equal to 300 milligrams (0.3 g × 1000 mg/g = 300 mg).

Next, each capsule contains 100 mg of docusate sodium. To find out how many capsules are needed to meet the prescribed dosage, divide the total required amount in milligrams by the amount per capsule.

300 mg (prescribed dosage) ÷ 100 mg (amount per capsule) = 3 capsules.

Thus, to administer 0.3 grams of docusate sodium, the nurse should give 3 capsules, which makes this the correct answer.