Five year old Andrew weighs 45 lbs and requires insulin. His doctor has prescribed 0.150 units of insulin/kg body weight/hr while he is in the hospital. The insulin bottle you have possesses a concentration of 20.0 units/15.0 ml and all must be given. Give all answers to three sig figs.
a. How many mL/hr will you need to set the IV pump?
My work: ( 1 lb = 0.453 kg 45 lbs x .453 kg= 20.4 kg
20.4 kg x 0.150= 0.306 units of insulin/kg body weight/ hr ) Not sure what to do after this or if I'm doing it right.
b. How long will it take, in hours, at the above rate for the above insulin bottle to be administered?
c. Your shift is 8 hours long. Will you need to change insulin bottles before your shift ends assuming you started the IV at the beginning of your shift? Yes or no?
Thank you so so much for your help!
a. correct
b. at that rate, you will use .306*8=2.45 Units per shift, so to use up the 20 Unit bottle, it will take 20/2.45=8.16 shifts, or nearly three days.