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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).
Answer and Explanation

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


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Related Questions

Correct Answer is ["7.2"]

Explanation

Dopamine infusion calculation:

  • Client weight: 176 pounds
  • Dopamine dose ordered: 3 mcg/kg/min
  • Dopamine concentration: 500 mg in 250 mL
  • Conversion factor: 1 mg = 1000 mcg
  • 1 kg = 2.2 pounds

Calculations:

  • Convert client weight to kg: 176 lbs / 2.2 lbs/kg = 80 kg
  • Calculate mcg/min: 3 mcg/kg/min × 80 kg = 240 mcg/min
  • Calculate mcg/hr: 240 mcg/min × 60 min/hr = 14400 mcg/hr
  • Calculate mL/hr: Dopamine concentration is 2 mg/250 mL, which equals 2000 mcg/mL.
    • mL/hr = 14400 mcg/hr / 2000 mcg/mL = 7.2 mL/hr

Answers:

  • mcg/min: 240 mcg/min
  • mcg/hr: 14400 mcg/hr
  • mL/hr: 7.2 mL/hr

Correct Answer is A

Explanation

A. "Take this medication before a meal or several hours after a meal." Levothyroxine absorption can be affected by food, so it's generally recommended to take it on an empty stomach to ensure consistent absorption. Food, particularly high-fiber or calcium-rich foods, can interfere with levothyroxine absorption, hence taking it before meals or a few hours after meals helps optimize its effectiveness.

B. "Take this medication during your morning meal.": This may not ensure consistent absorption as food can still interfere with medication absorption.

C. "Take this medication with a full glass of water or fruit juice.": While water is recommended for swallowing pills, it doesn't address timing or food interactions.

D. "Take this medication with high-protein foods.": Protein content in food does not affect levothyroxine absorption directly.

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