Question

The physician prescribed 0.5 g of ampicillin. The label states that "Ampicillin 500 mg/5 mL", How many milliliters should be administered?

a. 150 mg
b. 5 mL
c. 2.5 mL
d. 1 mL

Answer 1

To determine the number of milliliters that should be administered, we can use a proportion to find the solution. The correct answer is 0.05 mL.

Step-by-step explanation:

To determine the number of milliliters that should be administered, we can use the ratio of 500 mg to 5 mL. Since the prescription is for 0.5 g (or 500 mg), we can set up the following proportion:

500 mg / 5 mL = 0.5 g / x mL

Cross-multiplying, we find:

500 mg * x mL = 5 mL * 0.5 g

x = (5 mL * 0.5 g) / 500 mg = 5 mL / 100 = 0.05 mL

Therefore, 0.05 mL should be administered.