Question

Prochlorperazine (Compazine) for injection is available in 10-mL multiple dose vials containing 5 mg/mL. How many 2-mg doses can be withdrawn from the vial?

Answer 1

Answer: 25 doses of 2 mg each from the 10-mL vial

Explanation:

To determine how many 2-mg doses can be withdrawn from a 10-mL vial containing Prochlorperazine at a concentration of 5 mg/mL, you can use the following calculation:

1. Calculate the total amount of Prochlorperazine in the vial:

Total amount = Concentration × Volume

Total amount = 5 mg/mL × 10 mL

Total amount = 50 mg

2. Now, calculate how many 2-mg doses can be withdrawn:

Number of 2-mg doses = Total amount / Dose per patient

Number of 2-mg doses = 50 mg / 2 mg/dose

Number of 2-mg doses = 25 doses

So, you can withdraw 25 doses of 2 mg each from the 10-mL vial of Prochlorperazine.

Answer 2

25

Explanation:

Given:

Volume of Prochlorperazine injection available = 10 mL

Dose per vial = 5 mg/mL

Now,

The total mass of dose present in 10 mL = Volume × Dose

or

The total mass of dose present in 10 mL = 10 × 5 = 50 mg

Thus,

The number of 2 mg dose that can be withdrawn =
`\frac{\textup{50 mg}}{\textup{2 mg}}`

or

The number of 2 mg dose that can be withdrawn = 25