[color=#ff0066]okay, so i'm studying for a pharmacology test for monday march 26, 2012. i am having a very hard time with calculations. one of my practice questions is: a client has just delivered an 8lb 8oz baby boy after prolonged labor. the pediatrician orders ampicillian 50mg to be given by the intramuscular route to the newborn every 8 hours. the nurse is initiating the first dose. ampicillian is available in powder form for injection. the directions on the bottle indicate reconstitution with 0.9 ml of sterile diluent for a concentration of 125mg/ml. how many ml would the nurse prepare to administer the first dose? i actually don't even really understand the question, let alone a formula for how to solve it. please help!!!