Another Medication Calculation Question

About DrugReptoNurse
Joined: Sep '05; Posts: 178; Likes: 166
SRNA; from US
Specialty: Anesthesia, CCRN, SRNA 




Oct 10, '06are you sure you've remembered all the parts of this problem correctly? a solution of 250mg of dobutamine in 250ml of solution would be 1mg per 1ml, or 1000mcg per 1ml. (1 mg = 1000mcg) assuming that it is being given by microdrip tubing, which is how dobutamine is usually given, that would be 250mcg per minute (15 microdrops per 60 seconds reduces to 1/4 of 1000mcg). the ratio 250mcg per 70kg would be 4 mcg/kg of body weight per minute (rounded off). however, you're not supposed to assume anything. so, there is missing information herelike the kind of tubing being used.

Oct 10, '06yeah, my answer had a leftover in the computation.
1/70kg x 1000mcg/1mg x 250mg/200ml = 250,000/14,000 = 17.86
however, the mls on the bottom are left over, not cancelled, and that tells me that there is something left out.