Difficulty: Medium
Average Score: 83%
Simulated
A nurse is preparing to administer dexamethasone 3 mg PO. Available are dexamethasone 1.5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
Correct answer
B
Rationale
The correct answer is B: 2 tablets. To achieve a total of 3 mg of dexamethasone, the nurse will need to administer 2 tablets of 1.5 mg each. This is calculated by dividing the total dose needed (3 mg) by the strength of each tablet (1.5 mg). Dividing 3 mg by 1.5 mg gives us 2 tablets. Therefore, the nurse should administer 2 tablets to achieve the desired dose of 3 mg.
Choice A (1 tablet) is incorrect because 1 tablet would only provide 1.5 mg of dexamethasone, which is less than the required dose of 3 mg. Choices C (3 tablets) and D (4 tablets) are incorrect as they would result in an overdose, exceeding the required dose of 3 mg.
Choice A (1 tablet) is incorrect because 1 tablet would only provide 1.5 mg of dexamethasone, which is less than the required dose of 3 mg. Choices C (3 tablets) and D (4 tablets) are incorrect as they would result in an overdose, exceeding the required dose of 3 mg.