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 A
Explanation
The client’s symptoms of confusion, flushed appearance, and acetone odor on their breath suggest that they may be experiencing diabetic ketoacidosis (DKA), a serious complication of diabetes that occurs when the body produces high levels of ketones.
Treatment for DKA typically involves administering intravenous fluids and insulin to lower blood sugar levels and suppress ketone production 1.
Regular insulin is a fast-acting insulin that can be given intravenously to quickly lower blood sugar levels 1.
Choice B is incorrect because NPH insulin is an intermediate-acting insulin that takes longer to start working and would not be appropriate for treating DKA.
Choice C is incorrect because lispro insulin is a rapid-acting insulin but it is not typically given intravenously.
Choice D is incorrect because glargine insulin is a long-acting insulin that takes several hours to start working and would not be appropriate for treating DKA.
Correct Answer is D
Explanation
“Inject the medication into the abdomen above the level of the iliac crest.” When administering heparin subcutaneously, it is appropriate to inject the medication into the abdomen above the level of the iliac crest 1.
Choice A is not correct because a 1-inch needle may be too long for subcutaneous injection.
A shorter needle, such as a 3/8 to 5/8 inch needle, is typically used for subcutaneous injections.
Choice B is not correct because a 22-gauge needle may be too large for subcutaneous injection.
A smaller gauge needle, such as a 25- or 27-gauge needle, is typically used for subcutaneous injections.
Choice C is not correct because massaging the injection site after administering heparin can increase the risk of bruising and should be avoided.
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