a client with a history of atrial fibrillation is prescribed warfarin coumadin which laboratory test should the nurse monitor to determine the effecti
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Nursing Elites

ATI LPN

ATI PN Adult Medical Surgical 2019

1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory test should the nurse monitor to determine the effectiveness of the medication?

Correct answer: B

Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of warfarin (Coumadin) therapy. These tests help assess the clotting time and the desired anticoagulant effect of the medication. Monitoring PT and INR levels is crucial to ensure that the client is within the therapeutic range, reducing the risk of bleeding or clotting complications associated with warfarin therapy. Platelet count (Choice A) measures the number of platelets in the blood and is not specific for monitoring warfarin therapy. Activated partial thromboplastin time (aPTT) (Choice C) is more commonly used to monitor heparin therapy, not warfarin. Fibrinogen level (Choice D) assesses the amount of fibrinogen in the blood and is not a specific test for monitoring warfarin therapy.

2. While assessing a client with preeclampsia who is receiving magnesium sulfate, the nurse notes her deep tendon reflexes are 1+, respiratory rate is 12 breaths/minute, urinary output is 90 ml in 4 hours, and magnesium sulfate level is 9 mg/dl. What intervention should the nurse implement based on these findings?

Correct answer: C

Rationale: The nurse should stop the magnesium sulfate infusion immediately in a client with preeclampsia exhibiting diminished reflexes, respiratory depression, and low urinary output, which indicate magnesium sulfate toxicity. This action is crucial to prevent further complications and adverse effects on the client.

3. When a client expresses, 'I don't know how I will go on' while discussing feelings related to a recent loss, the nurse remains silent. What is the most likely reason for the nurse's behavior?

Correct answer: D

Rationale: In therapeutic communication, silence can offer the client an opportunity to process their emotions and thoughts. By remaining silent, the nurse provides a space for the client to reflect on their own words, facilitating deeper exploration and understanding of their feelings.

4. The healthcare provider is caring for a patient who is taking warfarin (Coumadin). Which laboratory value should the healthcare provider monitor closely?

Correct answer: B

Rationale: Corrected Rationale: When caring for a patient on warfarin, monitoring prothrombin time (PT) is crucial. PT helps assess the blood's ability to clot properly, ensuring the patient maintains therapeutic anticoagulation levels while minimizing bleeding risks. Platelet count (Choice A) is important but not the most critical for warfarin therapy. Hemoglobin level (Choice C) and white blood cell count (Choice D) are not directly related to monitoring the effects of warfarin.

5. A client diagnosed with major depressive disorder refuses to get out of bed, eat, or participate in group therapy. Which intervention is most important for the nurse to implement?

Correct answer: C

Rationale: In cases of major depressive disorder where the client is non-participatory and withdrawn, sitting with the client and providing support without pressuring them to engage in activities like eating or therapy is crucial. This approach respects the client's current state, builds trust, and creates a supportive environment that can eventually lead to the client opening up and accepting help.

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