The nurse is teaching a client with obstructive sleep apnea about CPAP therapy. Which statement by the client indicates a need for further teaching?

Correct Answer: B

Rationale: Step 1: The correct answer is B because the client should not stop using CPAP therapy even if symptoms improve, as obstructive sleep apnea is a chronic condition. Step 2: Choice A is correct as consistent nightly use of CPAP is essential for managing obstructive sleep apnea. Step 3: Choice C is correct as CPAP therapy works by keeping the airway open during sleep to prevent apnea episodes. Step 4: Choice D is correct as cleaning the CPAP mask regularly is important to prevent infections and ensure effective therapy.

Correct Answer: A

Rationale: The correct answer is A: Ensure the reservoir bag is inflated before placing it on the patient. This is important because an inflated reservoir bag ensures a high concentration of oxygen is delivered to the patient. If the bag is not inflated, the mask will not provide the intended oxygen therapy. Choice B is incorrect as the flow rate for a non-rebreather mask is typically set at 10-15 liters per minute to ensure adequate oxygen delivery. Choice C is also incorrect as assessing the patient's ability to breathe independently is important but not the most crucial step before administering the mask. Choice D is incorrect as monitoring arterial blood gas levels is important but not the immediate action needed before administering the mask.

Correct Answer: C

Rationale: The correct answer is C because an oxygen saturation of 86% indicates severe hypoxemia, which can lead to tissue damage and organ dysfunction. The nurse should intervene immediately to improve oxygenation. A weak productive cough (Choice A) may indicate impaired airway clearance but does not require immediate intervention. Pleuritic chest pain (Choice B) is common in pneumonia but does not indicate an immediate threat to the patient's life. Coarse crackles in the lower lobes (Choice D) are typical findings in pneumonia but do not necessitate immediate action unless accompanied by severe respiratory distress.

Correct Answer: A

Rationale: The correct answer is A: Perform tracheostomy suctioning using sterile technique. This is the most appropriate action because thick secretions can obstruct the tracheostomy tube, leading to respiratory distress. Suctioning helps clear the airway and maintain patency. Sterile technique is crucial to prevent introducing infection. Incorrect Choices: B: Increasing oxygen flow does not directly address the issue of thick secretions in the tracheostomy tube. C: Instilling normal saline may further increase secretions and can potentially cause aspiration. D: Encouraging the patient to take deep breaths may not effectively clear the thick secretions from the tracheostomy tube.

Correct Answer: B

Rationale: The correct answer is B: Oxygen saturation of 85%. This assessment finding is most concerning because it indicates severe hypoxemia, which can lead to tissue damage and respiratory failure. A low oxygen saturation level of 85% requires immediate intervention to prevent further complications. Rationale: 1. Crackles heard in the lung bases (Choice A) are common in pneumonia but do not indicate severe hypoxemia. 2. Cough with yellow sputum production (Choice C) is a common symptom of pneumonia but does not directly reflect the patient's oxygenation status. 3. Respiratory rate of 22 breaths per minute (Choice D) is within the normal range and may not necessarily indicate severe respiratory distress. In summary, the oxygen saturation of 85% is the most concerning assessment finding as it directly reflects the patient's oxygenation status and requires immediate attention to prevent complications.