Question

1.) Medication ordered: Prepare 500 ml of a 10% solution

-available: 50% solution

-What volume of the 50% solution is needed?

2.) Medication ordered: Prepare 250ml of a 15% solution

Available: 70% solution

What volume of the 70% solution is needed?

3.) Medication ordered: Prepare 600 ml of a 25% solution

Available: 75% solution is needed?

a. What volume of the 75% solution is needed?

4.) Medication ordered: Prepare 750 ml of a 20% solution

Available: 80% solution

What volume of the 80% solution is needed?

3.)

Answer 1

1. Order Dose = 500 ml of a 10% solution

It means 50 ml drug and 450 dilutant. So, we need a 50 ml drug to make 500 ml of a 10% solution.

-available: 50% solution

If we take 100 ml of 50% solution then there will be 50 ml drug and 50 ml dilutant.

Answer - 100ml of  50% solution is needed.

2.

Medication ordered = 250ml of a 15% solution

so, 15% of 250 ml is 37.5 ml()

available: 70% solution

so,

Answer - 53.57 ml of the 70% solution is needed

3.

Medication ordered: Prepare 600 ml of a 25% solution

So, 25% of 600 ml is 150ml ()

Available: 75% solution

So,

Answer - 200 ml of the 75% solution is needed.

4.

Medication ordered: Prepare 750 ml of a 20% solution

So, 20% of 750 ml is 150ml

Available: 80% solution

So,

Answer - 187.5 ml of the 80% solution is needed.