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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The nurse should administer 2 tablets of lorazepam 1 mg to give a total dose of 2 mg.
This is calculated by dividing the desired dose (2 mg) by the available dose (1 mg/tablet) to get the number of tablets needed: 2 mg / (1 mg/tablet) = 2 tablets.
Choice A, 1 tablet, is not the correct answer because it would only provide a total dose of 1 mg.
Choice C, 3 tablets, is not the correct answer because it would provide a total dose of 3 mg.
Choice D, 4 tablets, is not the correct answer because it would provide a total dose of 4 mg.
Correct Answer is A
Explanation
The client should remove the used patch with medication areas to the inside and discard it in a closed receptacle 1.
Choice B is incorrect because the nitroglycerin patch should not be kept in place for 24 hours per day.
Instead, it should be worn for 12 to 14 hours and then removed 12.
Choice C is incorrect because while it is important to apply the patch to a clean, dry skin area with little or no hair that is free of scars, cuts, or irritation 1, there is no specific instruction to cleanse excess hair from the skin before applying the patch.
Choice D is incorrect because a second patch should not be applied if angina pain occurs.
Nitroglycerin transdermal patches are used to reduce the number of angina attacks over a long time and will not relieve an attack that has already started because it works too slowly 1.
Instead, the client should check with their doctor if they also need a fast-acting medicine to relieve the pain of an angina attack 1.
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