Titration Problems - Help!!!!

For your first question the answer I came up with was 45 mg/hr. The pump setting would be 37.5 ml/hr. I took the child's wt, converted to kg., (25kg), multiplied that by 30mcg ( that's 750 )then I multiplied THAT by 60 (60 minutes in an hour). 45000 mcg per hour or 45 mg per hour. Then I got to the medication on hand - The way I did it was divide 120 by 100 for 1.2 mg/ml. Then I divided 45 mg per hour by 1.2 to get the rate of 37.5 ml/hr for the pump. (I never could do the ratio thing, but if I have a calculator, I usually get the same answer as my ratio competent co workers. ) As for your second question, there really is not enough information given. Single dose vials come in differing concentrations. If the concentrations are 30mg/ml and 15mg/ml , I would draw up the 30mg/ml and 10mg from the 15mg/ml vial, giving a volume of 1.33 ml. If the vials are 15mg/ml and 30mg in 2ml, then I would draw up both 15mg/ml doses with 0.7 ml from the 30mg/ 2ml vial for a volume of 2.7 ml, since this is an IM injection and you are supposed to keep injection amounts at or below 3 ml. Hope this helps.

...

re:Here is a problem sample; Give lidocaine 30 mcg/kg/min to a child weighing 55 lbs. the drug available is 120 mg/100 ml of fluid. How many mcg/min will be given? The total mcg/min will be 750 mcg/min. 30mcg/min times childs wt. in kg...30 x 25 = 750 I think this is the answer you were going for.