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1. A patient with congestive heart failure is prescribed furosemide 40 mg IV twice a day. The
medication label reads 10 mg/mL. How many mL of furosemide should the nurse administer per
dose?
A) 2 mL
B) 4 mL*
C) 8 mL
D) 10 mL
Rationale: To find the volume of medication to administer, use the formula V = D/C, where V is
volume, D is dose, and C is concentration. Plug in the values: V = 40 mg / 10 mg/mL = 4 mL.
2. A patient with diabetes mellitus is prescribed regular insulin 12 units subcutaneously before
breakfast. The insulin syringe has a concentration of 100 units/mL. How many mL of insulin should the
nurse draw up?
A) 0.08 mL
B) 0.12 mL*
C) 0.18 mL
D) 0.24 mL
Rationale: To find the volume of insulin to draw up, divide the dose by the concentration: 12 units /
100 units/mL = 0.12 mL.
3. A patient with hypertension is prescribed metoprolol 50 mg PO twice a day. The pharmacy
dispenses metoprolol 25 mg tablets. How many tablets should the nurse administer per dose?
A) 1 tablet
B) 2 tablets*
C) 3 tablets
D) 4 tablets
Rationale: To find the number of tablets to administer, divide the dose by the strength of each tablet:
50 mg / 25 mg = 2 tablets.
4. A patient with chronic kidney disease is prescribed epoetin alfa 150 units/kg subcutaneously three
times a week. The patient weighs 60 kg. The medication vial contains 2000 units/mL. How many mL of
epoetin alfa should the nurse administer per dose?
A) 0.45 mL*
B) 0.75 mL
C) 1.5 mL
D) 2.25 mL
Rationale: To find the volume of medication to administer, first calculate the dose in units by
multiplying the dose per kg by the patient's weight: 150 units/kg x 60 kg = 9000 units. Then, divide the
dose by the concentration: 9000 units / 2000 units/mL = 0.45 mL.
5. A patient with schizophrenia is prescribed haloperidol decanoate 100 mg IM every four weeks. The
medication vial contains a concentration of 50 mg/mL. How many mL of haloperidol decanoate
should the nurse administer per dose?
A) 1 mL
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