A patient is prescribed dobutamine at 2 micrograms/kg/min. The patient weighs 75 kg. You have prepared 200 mg in 50 mL infusion. What rate will you set the infusion pump in mL/hr? Choose the cor
Question
A patient is prescribed dobutamine at 2 micrograms/kg/min. The patient weighs 75 kg. You have prepared 200 mg in 50 mL infusion. What rate will you set the infusion pump in mL/hr? Choose the cor
Solution
To solve this problem, we need to follow these steps:
- Convert the patient's weight from kg to micrograms: 75 kg = 75,000,000 micrograms.
- Calculate the total amount of dobutamine the patient needs per minute: 2 micrograms/kg/min * 75,000,000 micrograms = 150,000 micrograms/min.
- Convert this amount to milligrams, as the infusion is measured in milligrams: 150,000 micrograms/min = 150 mg/min.
- Calculate how many minutes the 200 mg infusion will last: 200 mg / 150 mg/min = 1.33 min.
- Convert this time to hours: 1.33 min / 60 = 0.022 hours.
- Calculate the rate of the infusion pump: 50 mL / 0.022 hours = 2272.72 mL/hr.
So, you should set the infusion pump at approximately 2273 mL/hr.
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