Nursing Elites

1. A nurse is caring for a client who is prescribed warfarin. Which of the following laboratory tests should the nurse review to evaluate the therapeutic effect of this medication?

• A. aPTT
• B. INR
• C. Serum glucose
• D. Bilirubin

Correct answer: B

Rationale: The correct answer is B: INR. The International Normalized Ratio (INR) is the most reliable test for evaluating the therapeutic effects of warfarin therapy. INR measures the clotting ability of the blood and helps determine if the dosage of warfarin is within the therapeutic range. Choice A, aPTT, is not typically used to monitor the effects of warfarin. Choice C, Serum glucose, and choice D, Bilirubin, are not relevant to monitoring the therapeutic effect of warfarin.

2. A client has been prescribed lisinopril. Which of the following medication interactions should the nurse instruct this client about?

• A. Potassium supplements
• B. Ciprofloxacin
• C. Escitalopram
• D. Magnesium supplements

Correct answer: A

Rationale: The correct answer is A: Potassium supplements. Clients taking lisinopril should avoid potassium supplements and potassium-sparing diuretics due to the risk of hyperkalemia. This interaction can lead to dangerously high levels of potassium in the blood, which can be harmful. Choice B, Ciprofloxacin, is not typically associated with a significant interaction with lisinopril. Choice C, Escitalopram, is an antidepressant and does not have a known significant interaction with lisinopril regarding potassium levels. Choice D, Magnesium supplements, are generally safe to take with lisinopril and do not pose a significant risk of hyperkalemia.

3. A nurse is providing client education on how to administer insulin. Which of the following instructions should the nurse include?

• A. Administer the insulin into the deltoid muscle
• B. Rotate injection sites to prevent lipodystrophy
• C. Massage the site after injection
• D. Use the same site for each injection

Correct answer: B

Rationale: The correct instruction for administering insulin is to rotate injection sites to prevent lipodystrophy, a common complication of insulin therapy. Injecting into the deltoid muscle (Choice A) is not recommended for insulin injections. Massaging the site after injection (Choice C) is not necessary and can potentially increase the risk of lipodystrophy. Using the same site for each injection (Choice D) can lead to localized tissue damage and absorption irregularities, making it an incorrect choice.

4. A healthcare provider is preparing to administer a measles, mumps, and rubella (MMR) vaccine to an adult client. Which of the following is a contraindication to this vaccine?

• A. The possibility of pregnancy within 4 weeks
• B. Client allergy to strawberries
• C. Client history of genital herpes
• D. The possibility of overseas travel in the next month

Correct answer: A

Rationale: The correct answer is A. Pregnancy or the possibility of pregnancy within 4 weeks is a contraindication for receiving the MMR vaccine. Choice B, client allergy to strawberries, is not a contraindication to the MMR vaccine. Choice C, client history of genital herpes, is not a contraindication for the MMR vaccine. Choice D, the possibility of overseas travel in the next month, is not a contraindication to the MMR vaccine.

5. A healthcare provider is preparing to administer heparin sodium to a client with deep vein thrombosis (DVT). Which of the following laboratory values should the provider monitor during therapy?

• A. INR
• B. Serum creatinine
• C. aPTT
• D. Bilirubin

Correct answer: C

Rationale: The correct answer is C: aPTT. The healthcare provider should monitor the activated partial thromboplastin time (aPTT) value during heparin therapy to assess the client's coagulation status. Heparin affects the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps ensure that the client is within the therapeutic range to prevent bleeding or clotting issues. INR (Choice A) is used to monitor warfarin therapy, not heparin. Serum creatinine (Choice B) is not directly related to monitoring heparin therapy. Bilirubin (Choice D) is related to liver function, not heparin therapy.

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