A nurse is preparing to administer lorazepam 2 mg PO.
Available in lorazepam 1 mg tablets.
How many tablets should the nurse administer?
1.
2.
3.
4.
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The nurse should instruct the client to cleanse the skin before applying a nitroglycerin transdermal patch 1.
This is because 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.
Choice A is incorrect because it is not recommended to use an old patch with medication residue.
Instead, always remove a previous patch before applying a new one 1.
Choice B is incorrect because a nitroglycerin patch should not be kept in place for 72 hours before replacing.
Instead, it should be worn for 12 to 14 hours and then removed 2.
Choice C is incorrect because the patch should not be applied to a hairy area of the skin for better adherence.
Instead, it should be applied to an area with little or no hair 1.
Correct Answer is B
Explanation
The nurse should administer 2.5 tablets.
To determine the number of tablets needed to administer a dose of 5 mg using 2 mg tablets, you can divide the desired dose (5 mg) by the available tablet strength (2 mg/tablet): 5 mg ÷ 2 mg/tablet = 2.5 tablets.
Choice A is incorrect because administering 2 tablets would only provide a dose of 4 mg (2 tablets x 2 mg/tablet = 4 mg).
Choice C is incorrect because administering 2.6 tablets would provide a dose of 5.2 mg (2.6 tablets x 2 mg/tablet = 5.2 mg).
Choice D is incorrect because administering 3 tablets would provide a dose of 6 mg (3 tablets x 2 mg/tablet = 6 mg).
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