which lab value should be monitored for a patient on warfarin therapy
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Nursing Elites

ATI RN

ATI RN Exit Exam Test Bank

1. Which lab value should be monitored for a patient on warfarin therapy?

Correct answer: A

Rationale: The correct answer is to monitor INR for a patient on warfarin therapy. INR monitoring is crucial as it helps assess the therapeutic effectiveness and safety of warfarin. INR stands for International Normalized Ratio, and it measures the blood's ability to clot. Monitoring potassium levels (Choice B) is not specific to warfarin therapy. Monitoring platelet count (Choice C) is important but not the primary lab value for assessing warfarin therapy. Monitoring sodium levels (Choice D) is not directly related to warfarin therapy.

2. What is the priority nursing intervention for a patient experiencing an acute asthma attack?

Correct answer: A

Rationale: The correct answer is to administer bronchodilators. In an acute asthma attack, the priority is to open the airways and improve airflow. Bronchodilators like albuterol are crucial in providing immediate relief to the patient. Monitoring oxygen saturation (choice B) is important but administering bronchodilators takes precedence in managing the acute attack. Providing supplemental oxygen (choice C) may be necessary but addressing the airway obstruction with bronchodilators is the priority. Starting IV fluids (choice D) is not the priority in an acute asthma attack unless specifically indicated for other reasons such as dehydration.

3. Which of the following lab values should the nurse monitor for a patient receiving heparin therapy?

Correct answer: C

Rationale: The correct answer is to monitor aPTT for a patient receiving heparin therapy. The activated partial thromboplastin time (aPTT) is used to assess and adjust heparin dosage to ensure the patient is within the therapeutic range for anticoagulation. Monitoring the aPTT helps in preventing both clotting and bleeding complications. Platelet count (Choice A) is important to monitor for patients receiving antiplatelet therapy, not heparin. PT/INR (Choice B) is typically monitored for patients on warfarin therapy, not heparin. Monitoring the complete blood count (CBC) (Choice D) is essential for various conditions but is not specific to monitoring heparin therapy.

4. A nurse is reviewing the prescription for doxazosin with a client. Which of the following should be included in the teaching?

Correct answer: C

Rationale: The correct answer is C. Doxazosin can cause orthostatic hypotension, leading to dizziness and falls if the client rises quickly from a seated position. Instructing the client to rise slowly when sitting up from bed helps prevent these adverse effects. Choices A, B, and D are incorrect because doxazosin does not directly relate to caloric intake, dietary fiber, or a specific time of day for administration.

5. A nurse is caring for a client following the application of a cast. Which of the following actions should the nurse take first?

Correct answer: B

Rationale: Palpating the pulse distal to the cast is the priority as it assesses for circulation. Ensuring adequate blood flow is essential to prevent complications such as compartment syndrome. Placing an ice pack over the cast could cause constriction of blood vessels, further compromising circulation. Teaching the client about cast care and positioning the casted extremity on a pillow are important but do not take precedence over assessing circulation.

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