help with this please

Mathematics
Tutor: None Selected Time limit: 1 Day

a med calls for 400mg/5ml, dispense 100ml. the dose is 40mg/kg/day the child weighs 44 lb. the sig reads _ tsp QID until gone. what would the tsp dose be? how many days will the script last?

Feb 3rd, 2015

100ml will contain  20 * 400 = 8000mg

child has to take 40 *44 =1760 mg per day

tsp dose = 1760/4 = 440 mg 

It will last 8000/1760 = 4 and a half days

Feb 3rd, 2015

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