Correct Answer: B

Rationale: Wearing comfortable shoes and clothing is crucial for the client undergoing a treadmill stress test to ensure they can complete the test without discomfort. The right attire will help the client move freely and reduce the risk of any hindrance during the test, which requires physical activity.

Correct Answer: B

Rationale: Pericardial friction rub is a distinctive sign of pericarditis, characterized by a scraping or grating sound heard on auscultation, which helps differentiate pericarditis from other cardiopulmonary conditions. Anterior chest pain may be present in various cardiopulmonary issues. Weakness and irritability are nonspecific symptoms, and chest pain worsening with inspiration is more indicative of pleuritic conditions.

Correct Answer: B

Rationale: When a client with CAD experiences chest pain, it indicates myocardial ischemia. The nurse should have the client stop the activity and lie back down in bed to reduce the heart's oxygen demand, decrease myocardial workload, and prevent further ischemia. This action helps in improving blood flow to the heart and can potentially alleviate the chest pain.

Correct Answer: D

Rationale: In this scenario, the nurse should prioritize educating the client about the effects of cocaine on the heart and provide a referral for further help. This approach is crucial in addressing the root cause of the client's health issues and supporting them in making informed decisions about their health. Reporting the client to the police or simply explaining the damage without offering solutions may not effectively address the client's needs or promote holistic care.

Correct Answer: B

Rationale: The correct answer is B. Taking frequent walks and avoiding prolonged bed rest are essential measures to promote circulation and reduce the risk of thrombophlebitis. Physical activity helps prevent blood from pooling and clotting in the veins, thus decreasing the likelihood of thrombophlebitis development.