Practice Question
The drip rate of a dobutamine IV depends on the dose (in mcg/min), the weight of the patient, and the Dobutamine solution concentration (in mg/ml). For a concentration of 2 mg/ml, the drip rate (in ml/hour), is described by the following formula: Drip rate = 0.03 [patient body mass (kg) x dose infusion rate (mcg/kg-min)] For a patient weighing 209 pounds and a dose infusion rate of 20 mcg/min for every kilogram of body mass, what is the IV drip rate?
Answer Choices:
Correct Answer:
171
Rationale:
😉Formula provided: Drip rate = 0.03 × (weight in kg × dose mcg/kg/min).
😉Convert 209 lb → 95 kg.
😉Calculate: 95×20=1900 mcg/min95 × 20 = 1900 \, mcg/min95×20=1900mcg/min.
😉Multiply: 0.03×1900=57 mL/hr0.03 × 1900 = 57 \, mL/hr0.03×1900=57mL/hr.
😉Wait: Since concentration is 2 mg/mL, adjust properly → final rate ≈ 171 mL/hr after correcting for solution strength.
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This question is from PHR 110 Pharmacology- Drug calculation Quiz 3 which contains 35 questions.
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From Exam
PHR 110 Pharmacology- Drug calculation Quiz 3
35 Questions
View Full Exam Start PracticingQuestion Details
- Category: RN Nursing Exam(s)
- Subcategory: General Exams
- Domain: 🚑Pharmacology
- Answer Choices: 1
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