Sodium valproate 250 mg order. The available concentration is 100 mg/mL. How many milliliters should be given?

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Multiple Choice

Sodium valproate 250 mg order. The available concentration is 100 mg/mL. How many milliliters should be given?

To determine how many milliliters to give, convert the prescribed milligrams into milliliters using the solution’s concentration. You need 250 mg, and the concentration is 100 mg per 1 mL, so each milliliter provides 100 mg. Volume required = 250 mg ÷ 100 mg/mL = 2.5 mL. Therefore, administer 2.5 mL. This also checks out: 2.5 mL × 100 mg/mL = 250 mg. The other amounts would deliver different total doses (e.g., 0.5 mL = 50 mg, 1 mL = 100 mg, 5 mL = 500 mg), which do not match the ordered 250 mg.

To determine how many milliliters to give, convert the prescribed milligrams into milliliters using the solution’s concentration. You need 250 mg, and the concentration is 100 mg per 1 mL, so each milliliter provides 100 mg. Volume required = 250 mg ÷ 100 mg/mL = 2.5 mL. Therefore, administer 2.5 mL. This also checks out: 2.5 mL × 100 mg/mL = 250 mg. The other amounts would deliver different total doses (e.g., 0.5 mL = 50 mg, 1 mL = 100 mg, 5 mL = 500 mg), which do not match the ordered 250 mg.

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