Question

20. Clindamycin 120mg every 8hrs is ordered for a child weighing 36kg. The recommended safe dose for a child is 8 to 16 mg/kg/day divided into 3 doses. You have Clindamycin 300mg/2ml on hand. What is the safe dose range in 24 hours? ____________ What is the safe amount range per dose? ____________ Is the ordered dose safe? ______________ What is the amount you would you give per dose? _____________

Answer 1

Ordered dose= 120mg every 8 hour

Available dose= 300mg

Available volume= 2ml.

Weight of the child=36kg

Recommended dosage= 8-16mg/kg/day

= 8×36kg- 16×36kg/day

= 388mg to 576mg per day.

Safe dose range per 24 hours= 388mg to 576 mg in three divided doses.

So Safe amount range per dose= 388/3 to 576/3 mg

= 129.3 mg to 192 mg

Ordered is 120 mg per dose,it is in the safe amount range of 129.3mg to 192mg, so ordered dose is safe.

Required amount= (ordered dose/available dose)×volume

=( 120mg/300mg)×2

= 0.8 ml

0.8ml should be administered per dose.