Ordered: Dobutamine 500 mg in 500 mL D5W to infuse 90 mg/h for a patient weighing 116 lb. The maximum safe dose of Dobutamine is 40 mcg/kg/min. If this is a safe dose, calculate the flow rate: ______ If the ordered dose is not a safe dose, write: not safe.
Fill in the blank(s) with the appropriate word(s).
90 mL/h
Step A Convert weight to kg
1 kg : 2.2 lb = x : 116 lb
Convert mcg to mg:
1 mg: 1,000 mcg = x : 40 mcg
x = 0.04 mg
Calculate mg/kg/min (desired dose):
D = 2.108 mg/min, rounded to 2.1 mg/min
Determine the maximum safe dose per hour
Maximum safe dose is 126 mg/h, so 90 mg/h is a safe dose.
Calculate the flow rate:
A = 90 mL/h
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