A postoperative child is prescribed morphine sulfate IV for pain. The recommended dose of morphine sulfate is 0.1 mg- 0.2 mg/kg/dose. What is the safe dose for this child who weighs 18 pounds?
a. 0.1 mg to 0.2 mg c. 0.8 mg to 1.6 mg
b. 1.6 mg to 3.2 mg d. 0.8 mg/kg to 1.6 mg/kg
ANS: C
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A Incorrect: This dose is not correct.
B Incorrect: This dose is not correct.
C Correct: Divide 18 pounds by 2.2 = 8.2 kg X 0.1 mg = 0.8 mg; 8.2 kg X 0.2 mg = 1.6 mg
D Incorrect: The answer should be in mg not mg/kg, which would change the recommended dose.
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