Difficulty: Medium
Average Score: 65%
Simulated
Passage / Scenario
A nurse is preparing to administer amoxicillin 320 mg PO every 12 hr to an infant. The amount available is amoxicillin suspension 400 mg/5 mL.A nurse is preparing to administer amoxicillin 320 mg PO every 12 hr to an infant. The amount available is amoxicillin suspension 400 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct answer
A
Rationale
To calculate the mL per dose, we use the formula: Desired dose / Stock dose = mL to administer. In this case, Desired dose is 320 mg, Stock dose is 400 mg/5 mL. So, 320 mg / 400 mg = 0.8. Then, 0.8 * 5 mL = 4 mL. Therefore, the correct answer is A: 4 mL. Choice B and others are incorrect because they do not follow the correct calculation based on the given information.