Your patient is on a dobutamine drip and it is to run at 40 mcg/kg/min. Your patient weighs 121 lbs. You have 500 mg of dobutamine in 125 cc D5W. How many cc/hour do you set the IV to run at?
My answer rounds to 65cc/hr. My instructor's answer is 33cc/hr. I am confused...Let me see what you think.
2007-08-28 10:43:38 · 3 answers · asked by Elfie 2 in Science & Mathematics ➔ Medicine
Got it.
Thanks a bunch.
2007-08-28 15:18:06 · update #1
So the per minute rate is 40mcg/kg/min * 55 kg = 2200 mcg/min or 2.2mg/min.
2.2mg/min * 60min/hr = 132 mg/hr
Your dobutamine concentration is 500mg/125cc = 4mg/cc.
So you need to give: 132mg/hr / 4mg/cc = 33cc/hr
Hope this makes sense.
2007-08-28 11:11:03 · answer #1 · answered by dwp_hornblower 4 · 2⤊ 0⤋
I got the same answer as your instructor, but figured it out differently than the other responder. The iv solution is 500 mg/125 cc.
The required dosage is 40mcg x 55 kg x 60 minutes = 132000 mcg = 132 mg
500 : 125 = 132 : x
x = 33 cc / minute
2007-08-28 12:04:34 · answer #2 · answered by greydoc6 7 · 2⤊ 0⤋
40mcg/kg/min
121lb=55kg
40x55=2200mcg/min
2.2mg/minx60min/hr-132mg/hr
500mgxhr/132mg=3.8hr
125cc/3.8hr=33cc/hr
2007-08-29 16:29:18 · answer #3 · answered by foofy 4 · 0⤊ 0⤋