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 reviewing laboratory results for a client who has rheumatoid arthritis and is prescribed methotrexate. Which of the following results should the nurse report to the provider?

Correct answer: D

Rationale: The correct answer is D: Aspartate aminotransferase (AST) 60 units/L. An elevated AST level indicates liver damage, which can be a side effect of methotrexate and should be reported. Elevated white blood cell count (choice A), platelet count (choice B), or normal hemoglobin level (choice C) are not directly related to methotrexate therapy for rheumatoid arthritis.

3. A nurse is providing discharge teaching to a client who has a wound infection. Which of the following information should the nurse include about home care?

Correct answer: D

Rationale: The correct answer is D: 'Keep the wound covered with a dry dressing.' When providing care for a wound infection, it is essential to keep the wound covered with a dry dressing to prevent further contamination and promote healing. Soaking the wound in warm water (choice A) can introduce moisture and increase the risk of infection. Using hydrogen peroxide (choice B) can be too harsh and may slow down the healing process by damaging healthy tissue. Applying a cold compress (choice C) is not typically recommended for wound infections, as it may not provide the necessary environment for healing.

4. A client with vision loss is being cared for by a nurse. Which of the following actions should the nurse take?

Correct answer: A

Rationale: The correct action for the nurse to take is to keep objects in the client's room in the same place. This helps individuals with vision loss navigate their environment more easily by creating a familiar and consistent layout. Choice B, ensuring high-wattage lighting, may not be suitable for all clients with vision loss and can cause discomfort or glare. Approaching the client from the side (Choice C) can startle them and is not recommended. Touching the client (Choice D) without warning may cause anxiety or distress, so it's important to announce presence verbally.

5. A nurse is providing discharge teaching to a client who has had a total hip arthroplasty. Which of the following client statements indicates a need for further teaching?

Correct answer: C

Rationale: The correct answer is C because bending at the hips can dislocate the hip joint in clients who have had a total hip arthroplasty. This movement should be avoided to prevent complications post-surgery. Choices A, B, and D are all correct statements for a client who has had a total hip arthroplasty. Avoiding prolonged sitting, crossing legs, and using a raised toilet seat are all appropriate measures to ensure proper healing and prevent complications.

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