Epinephrine IV infusion is ordered for a patient with shock. The ordered dose is 0.03 mcg/kg/min. The pharmacist prepares an epinephrine IV bag with a concentration of 5 mg/250 mL D5W. a. What is the amount of epinephrine that the patient will receive in 5 minutes, if the patient weighs 65 kg? b. For your 65 kg patient, what is the rate in mL/hr?
Question
Epinephrine IV infusion is ordered for a patient with shock. The ordered dose is 0.03 mcg/kg/min. The pharmacist prepares an epinephrine IV bag with a concentration of 5 mg/250 mL D5W. a. What is the amount of epinephrine that the patient will receive in 5 minutes, if the patient weighs 65 kg? b. For your 65 kg patient, what is the rate in mL/hr?
Solution
a. To find out the amount of epinephrine the patient will receive in 5 minutes, we first need to calculate the dose per minute and then multiply it by 5.
The dose per minute is 0.03 mcg/kg/min. So for a 65 kg patient, the dose per minute would be:
0.03 mcg/kg/min * 65 kg = 1.95 mcg/min
To find out the dose for 5 minutes, we multiply the dose per minute by 5:
1.95 mcg/min * 5 min = 9.75 mcg
So, the patient will receive 9.75 mcg of epinephrine in 5 minutes.
b. To find out the rate in mL/hr, we first need to convert the concentration of the IV bag to mcg/mL:
5 mg/250 mL = 5000 mcg/250 mL = 20 mcg/mL
Then, we find out how many mL are needed for the dose per minute:
1.95 mcg/min ÷ 20 mcg/mL = 0.0975 mL/min
To convert this to mL/hr, we multiply by 60:
0.0975 mL/min * 60 min/hr = 5.85 mL/hr
So, the rate for the 65 kg patient is 5.85 mL/hr.
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