Difficulty: Medium
Average Score: 71%
Simulated
A nurse is preparing to administer hydrocortisone 100 mg IM daily to a client. Available is hydrocortisone 250 mg/2 mL. How many mi should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if applies. Do not use a trailing zero.)
Correct answer
B
Rationale
The correct answer is B: 0.8 mL. To determine the correct dose, first, calculate the total volume needed for 100 mg of hydrocortisone using the given concentration (250 mg/2 mL). Set up a proportion: 250 mg is to 2 mL as 100 mg is to X mL. Cross multiply to get 250X = 200, then divide by 250 to find X = 0.8 mL. This calculation ensures the correct dosage is administered.
Choice A (3 mL) is incorrect as it does not accurately reflect the calculated dose. Choice C (8 mL) is incorrect as it is too high of a volume for the dose required. Choice D (0.08 mL) is incorrect as it is too low of a volume for the dose needed.
Choice A (3 mL) is incorrect as it does not accurately reflect the calculated dose. Choice C (8 mL) is incorrect as it is too high of a volume for the dose required. Choice D (0.08 mL) is incorrect as it is too low of a volume for the dose needed.