The physician has ordered 6 mg of morphine sulfate every 3 to 4 hours prn for a client's postop-erative pain. The unit dose in the medication dispenser has 15 mg in 1 mL. How much solution should the nurse give?
1. 1/5 mL
2. 1/3 mL
3. 2/5 mL
4. 1/4 mL
ANS: 3
The nurse should use the following formula to calculate a drug dosage:
6 mg
15 mg x 1 mL = 2/5 mL
Options 1, 2, and 4 are not correct dosage calculations.
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