Dobutamine hydrochloride 2 mcg/kg/min is prescribed for a client weighing 165 pounds. The solution is mixed with 50 mg of dobutamine in 1,000 mL of D5W. The nurse should set the infusion pump to deliver how many mL/hour? (Enter numeric value only.)
The Correct Answer is ["180"]
To find the answer, we can use the following steps:
- Convert the client's weight from pounds to kilograms by dividing by 2.2
- Calculate the dosage of dobutamine in mg/hour by multiplying the weight in kg by the rate in mcg/kg/min and by 60
- Divide the dosage of dobutamine in mg/hour by the concentration of dobutamine in the solution in mg/mL
- Round the result to the nearest whole number
Using these steps, we get:
- (weight in kg) = (165) / (2.2) = 75 kg
- (dose in mg/hour) = (2) x (75) x (60) = 9000 mcg/hour
- (dose in mg/hour) = (9000 x 10^-3) = 9 mg/hour
- (volume in mL/hour) = (9) / (50 / 1000) = 180 mL/hour
Therefore, the nurse should set the infusion pump to deliver 180 mL/hour of dobutamine hydrochloride in D5W.
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Related Questions
Correct Answer is ["168"]
Explanation
To find the answer, we can use the following steps:
- Convert the client's weight from pounds to kilograms by dividing by 2.2
- Multiply the weight in kilograms by the dosage in mg/kg
- Round the result to the nearest whole number
Using these steps, we get:
- (weight in kg) = (185) / (2.2) = 84.091 kg
- (dose in mg) = (2) x (84.091) = 168.182 mg
- (rounded dose in mg) = 168 mg
Therefore, the nurse should prepare to administer 168 mg of zidovudine IV to the client.
Correct Answer is ["15"]
Explanation
To find the answer, we can use the following steps:
- Calculate the infusion rate in mL/hour by dividing the volume of IV fluids by the time of infusion
- Calculate the infusion rate in mL/minute by dividing the infusion rate in mL/hour by 60
- Multiply the infusion rate in mL/minute by the drop factor in gtt/mL to get the infusion rate in gtt/minute
- Round the result to the nearest whole number
Using these steps, we get:
- (infusion rate in mL/hour) = (630) / (7) = 90 mL/hour
- (infusion rate in mL/minute) = (90) / (60) = 1.5 mL/minute
- (infusion rate in gtt/minute) = (1.5) x (10) = 15 gtt/minute
- (rounded infusion rate in gtt/minute) = 15
Therefore, the nurse should regulate the infusion to deliver 15 gtt/minute of IV fluids to the client.
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