Question

1. Ordered: Ancef q.i.d to 40 lb child Label: Ancef 125 mg/kg/day How many mg can the child receive in one day? How many mg can the child receive in every dose? 2. Ordered: Keflex q.8h 32 lb child Keflex 18 mg/kg/day Label: How many mg can the child receive in one day? How many mg can the child receive in every dose?

Answer 1

1.ANcef qid to 40 lb child=40/2.2=18.18 kg

Label ancef=125mg/kg.day

Hence for whole day amount in mg=1125X18.18=2272.72 mg

Then for each dose as said qid means 4 times a day single odse is =2272.72 mg/4=568.18mg

2. Keflex q8h 32lb child=32/2.2=14.54 kg

Lablel Keflex=18mg/kg/day

Then for whole day as required amount=18X14.54=261.81 mg

Then amount per dose as said q8h means every 8 hours= 261.81 mg/3= 87.27 mg for each dose of Keflex is required