Question

A child who weighs 79 pounds receive a prescription for doxycycline oral suspension 12mg/kg/daily ,to be administered in four equally divided doses. What doses should the nurse administrator every six hours.

Answer 1

Answer : Nurse should administer 107.7 mg every 6 hours

Child's weight : 79 lbs

Prescription :  doxycycline oral suspension 12mg/kg/daily  in four equally divided doses

Step 1 Find mg/day

(Here the weight given in pounds, use conversion factor to convert from pound to kg)

mg/day = ( Cancel out kg and lbs from numerator and denominator)

= mg/day

= mg/day

= 430.909 mg/ day

Step 2 Calculate mg/dose

From the medicine order, we know the daily dose should be equally devided in to four to find out mg/dose

mg/dose =

= 107.7 mg/dose