A client who weighs 65 kg is receiving an infusion of Dextrose 5% in Water (DW) 250 ml with dopamine 400 mg at 12 ml/hour. How many mcg/kg/minute is the client receiving? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["4.9"]
Step 1: Calculate the concentration of dopamine in the IV solution:
400 mg / 250 mL = 1.6 mg/mL
Step 2: Calculate the infusion rate in mL/minute:
12 mL/hour x (1 hour / 60 minutes) = 0.2 mL/minute
Step 3: Calculate the dopamine infusion rate in mg/minute:
0.2 mL/minute x 1.6 mg/mL = 0.32 mg/minute
Step 4: Convert milligrams to micro-grams:
0.32 mg x (1000 mcg / 1 mg) = 320 mcg/minute
Step 5: Calculate the dopamine infusion rate in mcg/kg/minute:
320 mcg/minute / 65 kg ≈ 4.9 mcg/kg/minute
Therefore, the client is receiving approximately 4.9 mcg/kg/minute of dopamine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["60"]
Explanation
To calculate the infusion rate, we'll use the following formula:
Infusion Rate (mL/hour) = Total Volume (mL) / Infusion Time (hours)
Plugging in the given values:
Infusion Rate = 240 mL / 4 hours
Infusion Rate = 60 mL/hour
Since the feeding is half-strength, the nurse should program the enteral pump to deliver 60 mL/hour.
Correct Answer is ["4.9"]
Explanation
Step 1: Calculate the concentration of dopamine in the IV solution:
400 mg / 250 mL = 1.6 mg/mL
Step 2: Calculate the infusion rate in mL/minute:
12 mL/hour x (1 hour / 60 minutes) = 0.2 mL/minute
Step 3: Calculate the dopamine infusion rate in mg/minute:
0.2 mL/minute x 1.6 mg/mL = 0.32 mg/minute
Step 4: Convert milligrams to micro-grams:
0.32 mg x (1000 mcg / 1 mg) = 320 mcg/minute
Step 5: Calculate the dopamine infusion rate in mcg/kg/minute:
320 mcg/minute / 65 kg ≈ 4.9 mcg/kg/minute
Therefore, the client is receiving approximately 4.9 mcg/kg/minute of dopamine.
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