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. What physical assessment data should the nurse consider a normal finding for a primigravida client who is 12 hours postpartum?

Correct answer: C

Rationale: The correct answer is C. A pulse rate of 56 BPM can be considered a normal finding for a primigravida client who is 12 hours postpartum. Postpartum bradycardia can occur due to increased stroke volume and decreased vascular resistance after delivery. It is important for the nurse to monitor the client's vital signs and recognize that a lower pulse rate can be expected in the immediate postpartum period. Choices A, B, and D are incorrect because a soft, spongy fundus may indicate uterine atony, saturating two perineal pads per hour is excessive bleeding, and unilateral lower leg pain could suggest deep vein thrombosis, all of which would require further assessment and intervention.

3. When assessing a client with a chest tube connected to suction, which observation indicates that the chest tube is functioning properly?

Correct answer: D

Rationale: Steady bubbling in the suction control chamber is the correct observation that indicates the chest tube is functioning properly. This steady bubbling signifies that the suction is actively maintaining the desired pressure level within the system, ensuring proper drainage and lung re-expansion. Continuous bubbling in the water seal chamber, intermittent bubbling in the suction control chamber, or no fluctuation in the water seal chamber are not indicative of optimal chest tube function and may require further assessment or intervention.

4. A 28-year-old woman presents with abdominal pain, diarrhea, and rectal bleeding. She has a history of similar episodes in the past. What is the most likely diagnosis?

Correct answer: A

Rationale: The constellation of symptoms including abdominal pain, diarrhea, and rectal bleeding in a young woman with a history of similar episodes is highly suggestive of ulcerative colitis. This chronic inflammatory condition primarily affects the colon and rectum, leading to symptoms such as bloody diarrhea, abdominal pain, and urgency. The recurrent nature of her symptoms and the presence of rectal bleeding further support this diagnosis over other conditions listed, such as irritable bowel syndrome, celiac disease, or diverticulitis, which typically do not present with the same combination of symptoms and history.

5. A client with chronic obstructive pulmonary disease (COPD) is receiving oxygen therapy. Which intervention should the nurse implement to ensure the client's safety?

Correct answer: C

Rationale: Using a nasal cannula to deliver oxygen at a low flow rate is the appropriate intervention for clients with COPD receiving oxygen therapy. High flow rates can lead to respiratory depression in COPD patients. This intervention helps maintain a safe and controlled oxygen delivery to prevent potential complications associated with high oxygen flow rates.

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