which of the following lab values indicates a patient on warfarin is at a therapeutic level
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Nursing Elites

ATI RN

ATI RN Comprehensive Exit Exam

1. Which of the following lab values indicates a patient on warfarin is at a therapeutic level?

Correct answer: C

Rationale: An INR of 2.5 indicates a therapeutic level for a patient on warfarin. The INR (International Normalized Ratio) is the most accurate way to monitor and adjust warfarin doses. An INR of 1.1 (Choice A) is below the therapeutic range, indicating a need for an increased dose. PT (Prothrombin Time) of 12 seconds (Choice B) is not specific for warfarin therapy monitoring. Platelet count (Choice D) is not directly related to monitoring warfarin therapy.

2. A healthcare provider is planning to delegate client assignments to the assistive personnel. Which of the following tasks is appropriate for the healthcare provider to delegate?

Correct answer: D

Rationale: The correct answer is 'D: Transporting a client to x-ray.' This task is appropriate for delegation to assistive personnel as it involves transferring the client safely from one location to another, which does not require the specialized skills of a healthcare provider. Adjusting the flow rate of the client's oxygen tank (Choice A) involves making clinical decisions that should be done by a licensed healthcare provider. Collecting a urine sample (Choice B) and measuring the client's pain level (Choice C) require critical thinking and assessment skills that are typically within the scope of practice of licensed healthcare providers, not assistive personnel.

3. A nurse is preparing to administer a dose of amoxicillin to a client who has an allergy to penicillin. Which of the following actions should the nurse take?

Correct answer: C

Rationale: In this scenario, the nurse should ask the provider to prescribe a different antibiotic instead of administering amoxicillin to a client with a known penicillin allergy. Choice A is incorrect because administering amoxicillin to a client with a penicillin allergy can lead to an allergic reaction. Choice B is not the best option as simply verifying the client's allergy status does not address the potential harm of giving amoxicillin. Choice D is irrelevant as checking the client's skin for rashes does not address the issue of administering a potentially harmful medication. Therefore, the most appropriate action is to request a different antibiotic from the provider to ensure the safety of the client.

4. A nurse is caring for a client with deep vein thrombosis who is prescribed warfarin. Which of the following client statements indicates a need for further teaching?

Correct answer: D

Rationale: The correct answer is D. Warfarin's effectiveness is reduced by high intake of vitamin K-rich foods, so increasing their intake would contradict the treatment plan. Choices A, B, and C are all appropriate statements for a client on warfarin therapy. Avoiding vitamin K-rich foods helps maintain the medication's effectiveness, avoiding aspirin reduces the risk of bleeding, and monitoring blood pressure is essential for overall health monitoring.

5. A nurse is caring for a client who has chronic kidney disease and a serum potassium level of 6.5 mEq/L. Which of the following actions should the nurse take?

Correct answer: B

Rationale: The correct action for the nurse to take is to administer sodium polystyrene sulfonate. This medication promotes potassium excretion and helps lower serum potassium levels in clients with hyperkalemia, which is indicated by a high potassium level. Sodium bicarbonate (choice A) is not used to treat hyperkalemia. Calcium gluconate (choice C) and calcium carbonate (choice D) are used to manage hyperkalemia by stabilizing cell membranes but are not the initial treatment choice for lowering potassium levels.

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