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.).
1.
2.
3.
4.
The Correct Answer is B
The nurse should administer 2 tablets.
Since each tablet contains 1.5 mg of dexamethasone, to administer a dose of 3 mg, the nurse should give 3 mg / 1.5 mg/tablet = 2 tablets.
Choice A is incorrect because 1 tablet would only provide a dose of 1.5 mg.
Choice C is incorrect because 3 tablets would provide a dose of 4.5 mg.
Choice D is incorrect because 4 tablets would provide a dose of 6 mg.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
NPH insulin is an intermediate-acting insulin that usually starts to work about 1 to 3 hours after injection and peaks 4 to 12 hours later12.
Peak time is when insulin has its strongest effect on lowering blood glucose1.
Choice A: 30 minutes to 3 hours is not the answer because NPH insulin usually starts to work about 1 to 3 hours after injection and peaks 4 to 12 hours later12.
Choice B: 2 to 6 hours is not the answer because NPH insulin usually starts to work about 1 to 3 hours after injection and peaks 4 to 12 hours later12.
Choice C: 4 to 5 hours is not the answer because NPH insulin usually starts to work about 1 to 3 hours after injection and peaks 4 to 12 hours later12.
Correct Answer is B
Explanation
To calculate the volume of cefixime oral suspension that the nurse should administer, you need to divide the prescribed dose (200 mg) by the concentration of the suspension (100 mg/mL).
This gives you 200 mg ÷ 100 mg/mL = 2 mL.
Therefore, the nurse should administer 2 mL of cefixime oral suspension.
Choice A is incorrect because 1.9 mL would provide a dose of 190 mg.
Choice C is incorrect because 2.1 mL would provide a dose of 210 mg.
Choice D is incorrect because 2.2 mL would provide a dose of 220 mg.
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