Question

Order: Zofran 8 mg p.o.t.i.d. Available: Zofran in a 100ml bottle labeled 4 mg/tsp. 

How many mL will the nurse administer for each dose?

Answer 1

Answer ;

ordered amount of this drug is 8 mg P.O

Available amount of the drug is 4 mg /tsp in 100 ml.

Here the 1 tsp contain 4 mg of this drug,
So we need to provide 2 tsp of this drug to meet 8 mg order.

Generally 5 ml would be available if we provide 1 tsp, but here we need to provide 2 tsp,

So there will be an administration 10 ml per each dose.

Answer 2

order:8mg

hand:4mg/tsp

1tsp:5ml

o/h=8mg/4mg

=2 tsp x 5ml

=10ml