Order tobramycin Nebcin 3 mgkgday IM in three divided dose P

Order: tobramycin (Nebcin) 3 mg/kg/day, IM, in three divided dose.

Patient weighs 145 lbs.

Drug available: 80 mg / 2 mL

1. How many milligrams of Nebcin should the patient receive per day?

2. How many milliliters of Nebcin should the patient receive per dose?

Given that

Patient weight=145 lbs

1lbs=0.453kgs

Then

145*0.453=65.685 kgs

Now ,

Given tobramyin(nebcin)= 3mg/kg/day

Therefore for 65.685 kgs=?mg

=65.685*3

=197.055mg

Therefore 197.055mg of nebucin is received by the patient per day.

The patient recevies nebcin for does=?

The does for per is 3times

Durg available=80/2(mg/ml)=40mg/ml

Then patient receive nebcin per does= total amount of nebcin per day/(number of times does per day * durg available)

Nebcin per does=(197.055)/(3*40)(ml/day)=[1.612]ml/day.

1.answer is 197.055mg/day

2.answer is 1.612 ml/day