RN HESI Dosage Calculations II

RN HESI Dosage Calculations II ( 55 Questions)

Penicillin G procaine 240,000 units intramuscularly is prescribed for a 4-year-old child who has a streptococcal respiratory infection. The medication vial is labeled 1,200,000  units/2 mL. How many mL should the nurse administer? (Enter numeric value only. If  rounding is required, round to the nearest tenth.) 



Correct Answer: ["0.4 mL"]

To calculate the dosage, use the formula: D/H x Q = X 

- D is the desired dose, H is the dose on hand, Q is the quantity, and X is the amount  to administer 

- Plug in the values: 240,000/1,200,000 x 2 = 0.4 

- The nurse should administer 0.4 mL of penicillin G procaine 




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