Question

You receive a prescription for cephalexin suspension 250mg/5ml 1.5 tsp tid x10 days. What is the appropriate quantity dispensed?

1) 125ml
2) 150ml with 1 refill
3) 200ml
4) 225ml

Answer 1

To determine the appropriate quantity dispensed for the prescription of cephalexin suspension, we need to calculate the total volume of the medication needed for the entire course of treatment. The appropriate quantity dispensed is 225ml.

Step-by-step explanation:

To determine the appropriate quantity dispensed for the prescription of cephalexin suspension, we need to calculate the total volume of the medication needed for the entire course of treatment. The prescription states that the patient should take 1.5 teaspoons of suspension three times a day for 10 days.

The concentration of the suspension is given as 250mg/5ml, which means that each 5ml of suspension contains 250mg of cephalexin.

First, we need to calculate how much suspension is needed for one day of treatment. Since the patient needs to take the suspension three times a day, the total volume of suspension needed for one day is:

1.5 tsp x 3 times/day = 4.5 tsp/day

Now, we can calculate the total volume of suspension needed for the entire course of treatment:

4.5 tsp/day x 10 days = 45 tsp

Since 1 tsp is equivalent to 5ml, the appropriate quantity dispensed would be:

45 tsp x 5ml/tsp = 225ml