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 nurse is planning to teach a group of clients about preventing low back pain. Which of the following information should the nurse include?

Correct answer: A

Rationale: The correct answer is A: 'Wear low-heeled shoes.' Wearing low-heeled shoes helps prevent back strain by promoting proper posture. High heels can cause an imbalance in the body's alignment, leading to increased stress on the lower back. Choices B, C, and D are incorrect. Elevating the legs while sitting can help with circulation but does not directly prevent low back pain. Engaging in prolonged sitting can actually contribute to low back pain due to decreased muscle activity and increased pressure on the spine. Sleeping on a soft mattress may not provide adequate support for the back, potentially worsening back pain instead of preventing it.

3. A nurse is caring for a client who has a new prescription for metformin. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct instruction for a client prescribed metformin is to take the medication with meals to improve absorption and reduce gastrointestinal upset. Metformin is typically recommended to be taken with food to minimize side effects. Option A is incorrect as taking metformin on an empty stomach may increase the risk of gastrointestinal side effects. Option B is unrelated as metformin does not interact with potassium-rich foods. Option D is also incorrect as metformin does not cause drowsiness, so there is no need to take it before bed.

4. A client with a colostomy needs optimal skin integrity. What action should the nurse take to promote this?

Correct answer: C

Rationale: To promote optimal skin integrity in a client with a colostomy, using a barrier cream to protect the skin from the irritating effects of the colostomy pouch contents is essential. Cleansing the peristomal skin with alcohol (Choice A) can be too harsh and drying for the skin. Changing the colostomy pouch every 3 days (Choice B) is important for hygiene but using a barrier cream is more directly related to skin protection. Cleaning the stoma with hydrogen peroxide (Choice D) is not recommended as it can be too abrasive for the sensitive stoma area.

5. A nurse is assessing a client who is experiencing auditory hallucinations. What question should the nurse ask?

Correct answer: D

Rationale: Exploring strategies to ignore the hallucinations can help clients manage symptoms.

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