Correct Answer: A

Rationale: The correct answer is A: Administer antibiotics and monitor oxygen levels. Antibiotics are essential to treat the infection caused by bacteria in pneumonia, while monitoring oxygen levels helps ensure adequate oxygenation. Administering bronchodilators and encouraging deep breathing, as in choice B, are more commonly associated with managing conditions like asthma or COPD, not pneumonia. Providing fluids and monitoring for dehydration, as in choice C, are important for various conditions but not specific to pneumonia management. Administering oxygen and providing bed rest, as in choice D, may be supportive measures in pneumonia treatment, but the key intervention is administering antibiotics.

Correct Answer: B

Rationale: Administering insulin as prescribed before meals is crucial for managing diabetes. This instruction is vital as it helps the client maintain blood sugar levels within the target range. Checking blood sugar levels once daily is important but not as critical as ensuring the timely administration of insulin. Taking medication only when feeling unwell is dangerous as it may lead to uncontrolled blood sugar levels. Eating carbohydrate-rich meals may actually destabilize blood sugar levels rather than stabilizing them, making it an incorrect choice.

Correct Answer: B

Rationale: The correct answer is B: 'Increase physical activity to 150 minutes per week.' Increasing physical activity is essential for clients with CAD as it helps reduce the risk of cardiovascular events. Choice A is incorrect as red meat is high in saturated fats, which can be detrimental for CAD. Choice C is incorrect as foods high in fiber, such as fruits, vegetables, and whole grains, are beneficial for heart health. Choice D is incorrect as increasing sodium intake can lead to hypertension and worsen CAD.

Correct Answer: B

Rationale: The best strategy to promote independence in self-care for a client concerned about extreme fatigue after an acute myocardial infarction is to instruct the client to gradually resume self-care tasks, with rest periods. This approach allows the client to regain independence without overexerting. Choice A is incorrect because encouraging the client to rest completely and letting the healthcare team take over self-care tasks may hinder independence. Choice C is incorrect as assigning assistive personnel to complete self-care tasks does not promote the client's independence. Choice D is not the best option as the primary focus should be on empowering the client to perform self-care tasks independently.

Correct Answer: A

Rationale: Shortness of breath is a primary symptom of left-sided heart failure. In this condition, the heart's inability to pump effectively leads to fluid backing up into the lungs, causing difficulty breathing. Edema (swelling), rapid heartbeat, and confusion are more commonly associated with other conditions or right-sided heart failure. Edema is often seen in right-sided heart failure due to fluid accumulation in the body, rapid heartbeat can be a general sign of heart issues, and confusion is more related to decreased brain perfusion in severe heart failure cases.