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NursingDosage Calculations

Dosage Calculation Practice: Penicillin Units to mL

The exercise requires 1.25 mL: divide the prescribed 500,000 units by the supplied 400,000 units per mL.

Question

A vial of penicillin solution contains 400,000 U/ml. You are to give 500,000 U. Give:

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Evidence boundary

This is MGCCC Level 1 practice question 4, a classroom calculation. The answer uses only the stated dose and concentration; it does not establish that the order, route, formulation, or administration is clinically appropriate. U means units and ml means mL. No patient-specific recommendation is made.