which lab value is critical for a patient on heparin therapy
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Nursing Elites

ATI RN

ATI RN Exit Exam

1. Which lab value is critical for a patient on heparin therapy?

Correct answer: A

Rationale: The correct answer is to monitor aPTT. Activated Partial Thromboplastin Time (aPTT) is crucial for patients on heparin therapy as it helps determine the clotting ability of the blood. By monitoring aPTT, healthcare providers can adjust the dosage of heparin to maintain therapeutic levels and prevent bleeding complications. Monitoring INR is more commonly associated with warfarin therapy, not heparin. Monitoring platelet count is important for assessing the risk of bleeding or clotting disorders but is not specific to heparin therapy. Monitoring sodium levels is not directly related to assessing the effectiveness or safety of heparin therapy.

2. A healthcare professional is reviewing the laboratory data of a client who has diabetes mellitus. Which of the following laboratory tests is an indicator of long-term disease management?

Correct answer: B

Rationale: Glycosylated hemoglobin (HbA1c) is the most accurate test for long-term management of blood glucose levels in individuals with diabetes mellitus. HbA1c reflects average blood glucose levels over the past 2-3 months, providing valuable information on the effectiveness of treatment and disease control. Postprandial blood glucose, glucose tolerance test, and fasting blood glucose are essential for monitoring blood glucose levels at specific times but do not offer the same insight into long-term disease management as HbA1c.

3. A nurse is providing teaching to a client who has a new prescription for nitroglycerin transdermal patches. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct answer is to instruct the client to rotate the patch site each time they apply it. This practice helps prevent skin irritation and ensures the effectiveness of nitroglycerin transdermal patches. Applying the patch to the same site each time can lead to skin irritation and decreased patch efficacy. Choices A, B, and D are incorrect because applying the patch to the upper arm, removing it before showering, and placing it on the lower abdomen do not promote proper rotation of patch sites, which is essential for optimal outcomes.

4. 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.

5. A client with gastroesophageal reflux disease (GERD) is being taught about lifestyle changes to manage the condition. Which of the following instructions should the nurse include?

Correct answer: B

Rationale: The correct answer is B: 'Sleep with the head of your bed elevated.' Elevating the head of the bed helps reduce acid reflux by keeping the head higher than the stomach, preventing stomach acid from flowing back into the esophagus. Choices A, C, and D are incorrect. Avoiding eating small, frequent meals, lying down after eating, and drinking fluids with meals can exacerbate GERD symptoms by increasing stomach acid production and promoting acid reflux.

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