The directions for reconstitution of a 5,000,000 unit vial of Pfizerpen (penicillin G potassium) reads: "For IM reconstitution, add sterile water for injection using these mL diluent units, per mL of solution:
18 mL/250,000
8 mL/500,000
3 mL/1,000,000"
The patient/client is to receive Pfizerpen (penicillin G potassium) 500,000 units IM now. What would be the best amount of diluent to add to the powder for reconstitution for IM use?
A) 3
B) 8
C) 18
D) 23

Question

Quizplus · Accepted Answer

Adding 8 mL results in a dilution of 500,000 units per milliliter.

The Directions for Reconstitution of a 5,000,000 Unit Vial of Pfizerpen