Practice Quiz

MACE Medication Assistant Exam Prep

Category - MACE Test Prep

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A patient is slated to receive an IV dose of 400,000 units of penicillin G benzathine (Bicillin). The 10 mL ampule label reads penicillin G benzathine 300,000 units per mL. How much medication should be administered?

  1. 1.3 mL
  2. 1.5 mL
  3. 10 mL
  4. 13 mL
  5. None of the Above
Explanation

Answer: A - 1.3 mL of penicillin G benzathine should be adminstered.  The math is as follows:


Desired dose: 400,000 units

Available concentration: 300,000 units (Units) per 1 mL (Volume)

(Desired dose ÷ Available concentration (units)) × Available dose concentration (volume) = Milliliters per desired dose

(400,000 units ÷ 300,000 units) × 1 mL = 1.3 × 1 mL = 1.3 mL

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