## question about ml/hr

by Sheila

(Dunwoody,GA)

Here is my problem:

The initial dose of Rebif is 0.7mg/kg/hr for 12 hours. How many ml of Rebif IV solution containing 400mg/ml would be needed for an adult male weighing 154 lbs during this 12 hour period?

I think this a ml/hr problem. First I converted 154 lbs to 70 kg and multiplied by the 12 hours. I get 588 mg. I divided the 588 by 400 and get 1.47. Is this correct? The answer provided is 147 ml. I think I am missing a step.