Correct Answer: D

Rationale: In COPD, pursed-lip breathing helps improve breathing efficiency by maintaining positive pressure in the airways, preventing airway collapse, and promoting oxygenation. This technique assists in controlling respiratory rate, reducing dyspnea, and enhancing oxygen saturation levels. Restricting fluid intake is not typically a part of COPD management. Providing a low-protein diet is not a standard intervention for COPD. Early-morning hours are generally not recommended for exercise due to cooler temperatures and higher pollution levels, which can exacerbate COPD symptoms.

Correct Answer: A

Rationale: When assessing a client with pulmonary tuberculosis, the nurse should expect lethargy as a common finding. Tuberculosis can cause fatigue and weakness due to the body's efforts to fight the infection. High-grade fever is another common symptom of tuberculosis, not weight gain or dry cough. Weight loss is more typical in tuberculosis due to decreased appetite and systemic effects of the infection. A persistent productive cough with sputum is more characteristic of tuberculosis rather than a dry cough.

Correct Answer: D

Rationale: In an asthma action plan, the yellow zone indicates caution and signals a need to monitor symptoms closely. When a student is in the yellow zone, the appropriate action is to follow the prescribed steps, which typically include using a quick-relief inhaler and closely monitoring peak flow. Going to the hospital is usually reserved for severe asthma exacerbations in the red zone. Therefore, the information that the student needs to go to the hospital is not typically appropriate when the student is in the yellow zone.

Correct Answer: A

Rationale: Stridor is a high-pitched, harsh respiratory sound that can indicate airway obstruction. It is a serious finding that requires immediate attention as it may lead to respiratory compromise. Copious oral secretions, hoarseness, and sore throat are common but expected findings after endotracheal tube removal and do not typically require urgent intervention.

Correct Answer: C

Rationale: It is essential to advise the client to avoid speaking for extended periods after the removal of the endotracheal tube to prevent strain on the vocal cords and allow the airway to recover. Speaking for prolonged periods can lead to irritation and potentially affect the healing process. The other options are also important post-extubation instructions, such as using the incentive spirometer to maintain lung function, positioning in a side-lying position for comfort, and frequent monitoring of vital signs to ensure the client's stability.