which lab value is critical for patients on warfarin therapy

ATI RN

ATI RN Exit Exam Test Bank

1. Which lab value is critical for patients on warfarin therapy?

A. Monitor INR
B. Monitor potassium levels
C. Monitor sodium levels
D. Monitor platelet count

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.

2. How should fluid overload in a patient with heart failure be managed?

A. Administer diuretics
B. Increase fluid intake
C. Provide oral fluids
D. Provide chest physiotherapy

Correct answer: A

Rationale: Administering diuretics is the appropriate management for fluid overload in a patient with heart failure. Diuretics help to reduce fluid retention by increasing urine output, thereby alleviating the fluid overload. Choices B, C, and D are incorrect. Increasing fluid intake would worsen the condition by adding more fluid to an already overloaded system. Providing oral fluids is not specific enough to address the excess fluid in the body, and chest physiotherapy is not indicated for managing fluid overload in heart failure patients.

3. A nurse is reviewing admission prescriptions for a group of clients. Which prescription should the nurse identify as complete?

A. Furosemide 20 mg BID
B. Aspirin 1 tablet daily
C. Nitroglycerin transdermal patch
D. Metoprolol 5 mg IV now

Correct answer: A

Rationale: The correct answer is A. A complete prescription should include the medication name (Furosemide), dosage (20 mg), and administration schedule (BID - twice daily). Choice B is missing the dosage of Aspirin, choice C lacks the dosage information for Nitroglycerin, and choice D does not specify the administration schedule for Metoprolol.

4. A nurse is providing teaching to a client who has a new prescription for clopidogrel. Which of the following instructions should the nurse include?

A. Avoid eating foods high in potassium.
B. Avoid drinking alcohol while taking this medication.
C. Take this medication with a full glass of water.
D. Take this medication with a full glass of water.

Correct answer: C

Rationale: The correct answer is C. Clients taking clopidogrel should take the medication with a full glass of water to prevent gastrointestinal irritation. Choice A is incorrect because there is no specific recommendation to avoid foods high in potassium with clopidogrel. Choice B is unrelated to the medication's administration. Choice D is a duplication of choice C, providing no additional information.

5. A nurse is preparing to administer a unit of packed RBCs to a client. Which of the following actions should the nurse take?

A. Prime the IV tubing with 0.9% sodium chloride.
B. Verify the client's blood type and Rh factor.
C. Administer the blood over 8 hours.
D. Use a 22-gauge needle for venous access.

Correct answer: B

Rationale: The correct answer is to verify the client's blood type and Rh factor. This action is crucial to ensure that the correct blood is administered, matching the client's blood type and Rh factor, which helps prevent transfusion reactions. Priming the IV tubing with 0.9% sodium chloride (Choice A) is not directly related to ensuring the correct blood product is administered. Administering the blood over 8 hours (Choice C) is not the standard practice for packed RBCs, which are usually given over a shorter period. Using a 22-gauge needle for venous access (Choice D) is not specific to the preparation for administering packed RBCs.