which lab value is essential for a patient receiving warfarin therapy which lab value is essential for a patient receiving warfarin therapy
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Nursing Elites

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ATI RN Exit Exam Test Bank

1. Which lab value is essential for a patient receiving warfarin therapy?

Correct answer: A

Rationale: The correct answer is to monitor the INR (International Normalized Ratio) for a patient receiving warfarin therapy. INR monitoring is crucial to assess the effectiveness of warfarin in preventing blood clots while minimizing the risk of bleeding. Monitoring sodium levels (choice B), potassium levels (choice C), or platelet count (choice D) is not specifically essential for patients on warfarin therapy and does not provide direct information on the drug's anticoagulant effects.

2. What is the therapeutic use of Alprazolam?

Correct answer: B

Rationale: The therapeutic use of Alprazolam is for the relief of anxiety. Alprazolam belongs to a class of medications known as benzodiazepines, which are commonly prescribed to manage anxiety disorders and panic attacks. It works by enhancing the effects of a natural chemical in the body (GABA) to produce a calming effect on the brain and nerves, thereby alleviating symptoms of anxiety.

3. A client has a chest tube in place connected to wall suction due to a right-sided pneumothorax. The client complains of chest burning. Which of the following actions should be taken?

Correct answer: Reposition the client.

Rationale: When a client with a chest tube connected to wall suction complains of chest burning, it may indicate that the tube is irritating or compressing nearby tissues. Repositioning the client can help relieve this irritation by ensuring the tube is not kinked or pulling on the tissues. Increasing suction, stripping the tube, or clamping it are not appropriate actions and could potentially worsen the situation or cause harm.

4. What is the condition where the body's immune system attacks its tissues, causing inflammation and damage?

Correct answer: A

Rationale: The correct answer is A: Autoimmune disease. Autoimmune diseases occur when the body's immune system mistakenly attacks its own tissues, leading to inflammation and damage. This is different from infectious diseases (choice B), which are caused by pathogenic microorganisms, allergic reactions (choice C), which involve an exaggerated response of the immune system to harmless substances, and degenerative diseases (choice D), which are characterized by progressive deterioration of tissue or organs due to various factors.

5. A patient who had a total hip replacement had an intraoperative hemorrhage 14 hours ago. Which laboratory test result would the nurse expect?

Correct answer: C

Rationale: The correct answer is C: Elevated reticulocyte count. Hemorrhage leads to the release of reticulocytes (immature red blood cells) from the bone marrow into circulation as a compensatory mechanism to replenish lost red blood cells. This response helps in restoring the oxygen-carrying capacity of the blood. Choices A and B, hematocrit of 46% and hemoglobin of 13.8 g/dL, may not reflect the immediate response to hemorrhage within 14 hours. Choice D, decreased white blood cell (WBC) count, is not directly related to the body's response to hemorrhage.

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