Question

Dopamine comes in a concentration of 500mg/250ml. The patient needs an infusion with a dosage of 60mg/kg. If the patient weighs 108 pounds, how many ml should be administered?

Answer 1

patient's weight =108 pounds=49 kg

required dose =60mg/kg

meansfor 49 kg patient the required dose will be=49X60=2940 mg

Available dopamine concentration of 500mg/250ml

means 2mg/ml

then for 2940 mg the required ml=?

2mg in 1 ml

1mg in =1/2 ml

2940 mg will be supplided from=(1/2)X2940 ml

=1470 ml should be administered for the required dose in this patient having the given weight