Question

The primary care provider has written a prescription for 250mg of Claforan every 6hrs to a client. On hand is a 1-gram vial of Claforan. The directions on the vial state:

a) Reconstitute with 4 mL of sterile water and administer the entire solution.
b) Reconstitute with 5 mL of sterile water and administer the entire solution.
c) Reconstitute with 6 mL of sterile water and administer the entire solution.
d) Reconstitute with 7 mL of sterile water and administer the entire solution.

Answer 1

To determine the correct volume of sterile water required to reconstitute a 1-gram vial of Claforan to obtain a 250mg dose, we can use the equation Dose (mg) = Concentration (mg/mL) x Volume (mL). In this case, the correct answer is a) Reconstitute with 4 mL of sterile water and administer the entire solution.

Step-by-step explanation:

To determine the amount of solution needed, we can use the equation:

Dose (mg) = Concentration (mg/mL) x Volume (mL)

In this case, the dose is 250mg, and the concentration of Claforan in the vial is 1 gram (1000mg) in 4mL, 5mL, 6mL, or 7mL of sterile water. We need to find the volume of solution that contains 250mg of Claforan.

Taking the concentration of 1000mg/4mL as an example, we can set up the equation:

1000mg/4mL = 250mg/x

Cross multiplying, we get:

1000mg * x = 4mL * 250mg

1000x = 1000

x = 1mL

Therefore, the correct answer is a) Reconstitute with 4 mL of sterile water and administer the entire solution.