which lab value is critical for a patient on heparin therapy

ATI RN

ATI RN Exit Exam

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

A. Monitor aPTT
B. Monitor INR
C. Monitor platelet count
D. Monitor sodium levels

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 provider is providing discharge instructions to a client with type 2 diabetes mellitus. Which resource should the healthcare provider provide?

A. Personal blogs about managing the adverse effects of diabetes medications.
B. Food label recommendations from the Institute of Medicine.
C. Diabetes medication information from the Physicians' Desk Reference.
D. Food exchange lists for meal planning from the American Diabetes Association.

Correct answer: D

Rationale: Food exchange lists from the American Diabetes Association are a valuable resource for structured meal planning in individuals with diabetes. These lists categorize foods based on macronutrient content and help individuals plan balanced meals to manage blood sugar levels effectively. Personal blogs may not always provide accurate and evidence-based information. Food label recommendations from the Institute of Medicine are important but may not be as specific to meal planning for diabetes. Diabetes medication information is crucial but not the primary focus when providing dietary instructions.

3. A nurse is caring for a client who has a chest tube. Which of the following actions should the nurse take?

A. Clamp the chest tube for 15 minutes every 2 hours.
B. Empty the drainage collection chamber when it is half full.
C. Keep the drainage system below the level of the client's chest.
D. Strip the chest tube every 2 hours to maintain patency.

Correct answer: C

Rationale: The correct action the nurse should take when caring for a client with a chest tube is to keep the drainage system below the level of the client's chest. This positioning helps prevent fluid from flowing back into the pleural space, ensuring proper drainage and effective functioning of the chest tube. Clamping the chest tube intermittently or stripping it frequently can lead to complications and should be avoided. Emptying the drainage collection chamber at specific intervals may vary based on institutional protocols, but it should be done when it is no more than two-thirds full to prevent backflow and maintain accurate monitoring of drainage output.

4. A nurse is caring for a client who has pneumonia and is receiving oxygen therapy. Which of the following findings indicates the need for suctioning?

A. Increased respiratory rate.
B. Oxygen saturation 96%.
C. Clear lung sounds.
D. Productive cough.

Correct answer: A

Rationale: The correct answer is A: Increased respiratory rate. An increased respiratory rate suggests the client is having difficulty clearing secretions and may require suctioning. Oxygen saturation of 96% is within the normal range and indicates adequate oxygenation. Clear lung sounds suggest good air entry without the need for suctioning. A productive cough, although a symptom of pneumonia, does not directly indicate the need for suctioning.

5. Which medication is commonly prescribed for a patient with hypertension?

A. Lisinopril
B. Metformin
C. Atorvastatin
D. Aspirin

Correct answer: A

Rationale: The correct answer is Lisinopril. Lisinopril is an ACE inhibitor commonly prescribed to patients with hypertension to manage their blood pressure. Metformin is used to treat type 2 diabetes, not hypertension (choice B). Atorvastatin is a statin used to lower cholesterol levels, not primarily prescribed for hypertension (choice C). Aspirin is used for its antiplatelet effects and in preventing cardiovascular events, but it is not a first-line treatment for hypertension (choice D). Therefore, Lisinopril is the most suitable choice for a patient with hypertension.