mcg/kg/min

[Couture85]

A continuous dopamine drip is infusing at 12 ml/hr. Patient weight is 154 lbs. Calculate dose of drug in mcg/kg/min if the label on the bag reads 800 mg in 250 ml, equivalent to 3200 mcg/ml.

HELP!

[Daytonite, BSN, RN]

8 mg = 8000mcg, so you have 8000 mcg in a 1000 ml bag which is the equivalent of 8 mcg per ml

your patient is being infused at 60 ml per hour which is equal to 1ml per minute

the 1 ml has 8 mcg in it

so you would divide the 8 mcg by the patients weight in kg (90)

which equals 0.0888888 which rounds to 0.09 mcg/kg/min

i think that's right. i need to review formulas for my 2nd dosage calculations class this summer. hopefully daytonite will come by and do it for you.

is this a different problem? 8 mg in 1000 ml infusing at 60 ml per hours (1 ml per minute) with a patient weight of 70 kg. and you want to know what the mcg/kg/min are?

i do factor labeling to get all the labels needed into the equation and come up with:

8 mg/1000 ml

(dose on hand)

x 70 kg

(patient weight)

/hour

(part of infusion rate)

x 1000 mg/1 mg

(conversion factor)

x 1 hour/60 minutes

(conversion factor)

= 9.3333 mcg/kg/min

, rounded to

9 mcg/kg/min

[Couture85]

The answer my teacher gave was 19.05 mcg/kg/min.

I have no clue how she got it.

[cursedandblessed]

daytonite I think this patient is a different weight-90 kg. I don't see this in my calc with confidence book. Just how to take your mcg/kg/min and figure your per hour rate.

[Daytonite, BSN, RN]

daytonite I think this patient is a different weight-90 kg. I don't see this in my calc with confidence book. Just how to take your mcg/kg/min and figure your per hour rate.

Oops! With the correction the answer comes out to 12 mcg/kg/min.