Give Dobutamine 5.5 mcg/kg/min. The drug is available as 750 mg in 500 ml of fluid. The client weighs 220 pounds. Calculate mcg/min, mcg/hr, and ml/hr. (Include the unit of measure for each answer).
The Correct Answer is ["22"]
Dobutamine infusion calculation:
- Client weight: 220 pounds
- Dobutamine dose ordered: 5.5 mcg/kg/min
- Dobutamine concentration: 750 mg in 500 mL
- Conversion factor: 1 mg = 1000 mcg
- 1 kg = 2.2 pounds
Calculations:
- Convert client weight to kg: 220 lbs / 2.2 lbs/kg = 100 kg
- Calculate mcg/min: 5.5 mcg/kg/min × 100 kg = 550 mcg/min
- Calculate mcg/hr: 550 mcg/min × 60 min/hr = 33000 mcg/hr
- Calculate mL/hr: Dobutamine concentration is 750 mg/500 mL, which equals 1500 mcg/mL.
- mL/hr = 33000 mcg/hr / 1500 mcg/mL = 22 mL/hr
Answers:
- mcg/min: 550 mcg/min
- mcg/hr: 33000 mcg/hr
- mL/hr: 22 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.25"]
Explanation
Dopamine infusion calculation based on weight and concentration.
- Dopamine dose ordered: 3 mcg/kg/min
- Dopamine concentration: 600 mg in 1000 mL (or 600 mcg/mL)
- Client's weight: 110 pounds (converted to kg: 110 lbs / 2.2 = 50 kg)
Calculations:
- mcg/min = 3 mcg/kg/min × 50 kg = 150 mcg/min
- mcg/hr = 150 mcg/min × 60 min/hr = 9000 mcg/hr
- mL/hr = 150 mcg/min / 600 mcg/mL = 0.25 mL/hr
Answers:
- mcg/min = 150 mcg/min
- mcg/hr = 9000 mcg/hr
- mL/hr = 0.25 mL/hr
Correct Answer is C
Explanation
A. Coma: Possible in severe cases but not universally anticipated.
B. Hypothermia: Incorrect. Thyroid storms typically causes hyperthermia, not hypothermia.
C. Tachycardia. Tachycardia is a hallmark of thyroid storms due to excessive thyroid hormone levels stimulating the heart. Increased metabolic rate and sympathetic activity lead to rapid heart rate.
D. Fruity smelling breath: Not typically associated with thyroid storm.
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