which lab value is critical for monitoring warfarin therapy
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Nursing Elites

ATI RN

ATI RN Comprehensive Exit Exam

1. Which lab value is critical for monitoring warfarin therapy?

Correct answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial for monitoring warfarin therapy as it helps assess the therapeutic effectiveness and bleeding risks associated with the medication. INR measures the clotting tendency of blood, which is essential in determining the appropriate dosage of warfarin. Monitoring platelet count (B), sodium levels (C), or calcium levels (D) is not primarily used for assessing warfarin therapy. Platelet count is more relevant in assessing bleeding disorders, while sodium and calcium levels are typically monitored for different medical conditions unrelated to warfarin therapy.

2. A nurse is assessing a client who is postoperative following a gastric bypass. Which of the following findings should the nurse report to the provider?

Correct answer: C

Rationale: In a postoperative client, a urine output of 30 mL/hr is a concerning finding as it indicates oliguria, which may suggest dehydration or kidney impairment. Adequate urine output is essential for monitoring renal function and overall fluid status. A heart rate of 78/min is within the normal range for an adult. An oxygen saturation of 95% is acceptable and indicates adequate oxygenation. Serosanguineous wound drainage is expected in the early postoperative period and is not a cause for immediate concern unless it becomes excessive or changes character.

3. A nurse is providing teaching to a client who has GERD. Which of the following instructions should the nurse include?

Correct answer: B

Rationale: The correct answer is B: 'Avoid lying down after meals.' This instruction is important for clients with GERD to prevent acid reflux. Lying down after meals can worsen GERD symptoms by allowing stomach acid to flow back into the esophagus. Choices A, C, and D are incorrect. Choice A is incorrect because lying flat after meals can increase the risk of acid reflux. Choice C is incorrect because hot liquids may aggravate GERD symptoms. Choice D is incorrect because consuming a high-carbohydrate snack at bedtime can also trigger acid reflux in individuals with GERD.

4. A nurse is preparing to administer vancomycin IV to a client who has methicillin-resistant Staphylococcus aureus (MRSA). Which of the following actions should the nurse take?

Correct answer: A

Rationale: The correct action the nurse should take is to administer the medication over 60 minutes. This is important because administering vancomycin over 60 minutes helps prevent red man syndrome, a reaction that can occur with rapid infusion. Monitoring the client's blood glucose level (Choice B) is unrelated to vancomycin administration. Infusing the medication rapidly (Choice C) is incorrect and can lead to adverse reactions. Administering the medication using a filter needle (Choice D) is unnecessary for vancomycin administration.

5. How should a healthcare provider respond to a patient refusing a blood transfusion for religious reasons?

Correct answer: A

Rationale: When a patient refuses a blood transfusion for religious reasons, the healthcare provider should respect the patient's beliefs. It is crucial to uphold the patient's autonomy and right to make decisions about their care, even if the provider disagrees. Educating the patient on the importance of the transfusion may be appropriate in some cases, but the initial response should always be to respect the patient's decision. Notifying the healthcare provider is not necessary as the decision lies with the patient. Persuading the patient to accept the transfusion goes against the principle of respecting the patient's autonomy and beliefs.

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