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Category - Patient Care
You are preparing to administer an intravenous dose of 400,000 units of penicillin G benzathine (Bicillin). The 10 mL ampule label reads penicillin G benzathine 300,000 units per mL. You prepare to administer how much of the medication?
Answer: A - You should administer 1.3 mL of penicillin G benzathine
desired dose: 400,000 units available concentration: 300,000 units (units) per 1 mL (volume) (aesired dose ÷ available concentration (units)) × available dose concentration (volume) = mL per desired dose (400,000 units ÷ 300,000 units) × 1 mL = 1.3 × 1 mL = 1.3 mL