Which lab value is critical for patients on warfarin therapy?

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ATI RN Exit Exam Test Bank Questions

Question 1 of 5

Which lab value is critical for patients on warfarin therapy?

Correct Answer: A

Rationale: The correct answer is to monitor INR levels for patients on warfarin therapy. INR monitoring is essential because it helps assess the clotting tendency of the blood and ensures that patients are within the therapeutic range to prevent both blood clots and excessive bleeding. Monitoring potassium levels (Choice B), sodium levels (Choice C), or platelet count (Choice D) is not specifically required for patients on warfarin therapy and does not directly impact the effectiveness or safety of the medication.

Question 2 of 5

How should fluid balance in a patient with heart failure be monitored?

Correct Answer: A

Rationale: The correct answer is to monitor daily weight. Daily weight monitoring is crucial in assessing fluid balance in patients with heart failure because sudden weight gain can indicate fluid retention. Monitoring input and output (choice B) is important but may not provide a complete picture of fluid balance. Checking for edema (choice C) is a sign of fluid accumulation but may not be as accurate as daily weight monitoring. Monitoring blood pressure (choice D) is important in heart failure management but does not directly assess fluid balance.

Question 3 of 5

A healthcare professional is caring for a client who has an arteriovenous fistula. Which of the following findings should the healthcare professional report?

Correct Answer: B

Rationale: The correct answer is B: Absence of a bruit. In a client with an arteriovenous fistula, the presence of a bruit (a humming sound) is an expected finding due to the high-pressure flow of blood through the fistula. Therefore, the absence of a bruit suggests a complication, such as thrombosis or stenosis, which should be reported for further evaluation and management. Choices A, C, and D are incorrect because a thrill upon palpation, distended blood vessels, and a swishing sound upon auscultation are expected findings in a client with an arteriovenous fistula and do not necessarily indicate a complication.

Question 4 of 5

When discussing clients designating a health care proxy in situations requiring a durable power of attorney for health care (DPAHC), what information should the charge nurse include?

Correct Answer: C

Rationale: The correct answer is C. The charge nurse should include information that the proxy can make treatment decisions if the client is under anesthesia. This is a key function of a durable power of attorney for health care. Choices A, B, and D are incorrect because a health care proxy's role is specifically related to making health care decisions, not financial decisions, legal issues, or decisions made under anesthesia.

Question 5 of 5

A nurse is providing teaching about immunizations to a client who is pregnant. The nurse should inform the client that she can receive which of the following immunizations during pregnancy?

Correct Answer: C

Rationale: The correct answer is C: Tetanus diphtheria and acellular pertussis (Tdap) vaccine. The Tdap vaccine can be safely administered during pregnancy to protect both the mother and the newborn against whooping cough. Choices A, B, and D are incorrect because the Varicella vaccine, Inactivated polio vaccine, and Inactivated influenza vaccine are generally not recommended during pregnancy due to safety concerns.

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