The nurse teaches a patient about peak flow meter use. Which action by the patient indicates that teaching was successful?

Correct Answer: D

Rationale: The correct answer is D because using an albuterol inhaler for peak flows in the yellow zone indicates that the patient understands how to respond to worsening symptoms. Albuterol is a rescue inhaler used to manage asthma exacerbations, which are typically indicated by peak flows in the yellow zone. Inhaling rapidly through the peak flow meter (A) is not the correct technique and can lead to inaccurate readings. Taking montelukast (B) is a daily controller medication and not indicated for immediate symptom relief. Calling the healthcare provider when in the green zone (C) is unnecessary as the green zone signifies good lung function.

Correct Answer: B

Rationale: Correct Answer: B - "I should sleep on my back for better airflow." Rationale: 1. Sleeping on the back can worsen obstructive sleep apnea by causing the tongue and soft tissues to block the airway. 2. The optimal sleeping position for CPAP therapy is usually on the side to maintain open airways. 3. Choices A, C, and D are correct as consistent CPAP usage, regular cleaning, and weight loss can improve sleep apnea symptoms.

Correct Answer: D

Rationale: The correct answer is D because assessing the patient's reported exertional dyspnea directly evaluates the symptom that the patient is experiencing. Improvement in exertional dyspnea indicates that the treatment is effective in managing the patient's condition. It is essential to focus on the patient's subjective experience to determine treatment effectiveness. Choices A, B, and C are incorrect because: A: Heart rate below 100 beats per minute may or may not be relevant to assessing exertional dyspnea improvement. It does not directly evaluate the patient's reported symptom. B: Improved lung fields on a chest x-ray may suggest some improvement but do not directly correlate with the patient's symptom of exertional dyspnea. C: Stable blood pressure is important but does not directly assess the patient's reported symptom of exertional dyspnea.

Correct Answer: B

Rationale: The correct answer is B: Paradoxical chest wall movement. This finding is most concerning because it indicates a flail chest, a serious condition where a segment of the chest wall moves in the opposite direction of the rest of the chest during breathing, leading to respiratory compromise and potential lung injury. This requires immediate medical intervention. A: Mild chest wall bruising is less concerning as it may be a common finding in chest trauma without indicating severe underlying issues. C: A respiratory rate of 20 breaths per minute falls within the normal range and may not necessarily indicate a critical condition. D: Subcutaneous emphysema near the injury site can be concerning but is typically not as immediately critical as paradoxical chest wall movement in terms of respiratory compromise.

Correct Answer: C

Rationale: The correct answer is C. This statement is incorrect because stopping tuberculosis medications prematurely can lead to treatment failure and the development of drug-resistant strains. Patients must complete the full course of treatment to ensure the infection is completely eradicated. Wearing a mask to prevent spreading the infection, taking medication for at least 6 months as prescribed, and scheduling regular follow-up appointments are all essential steps in managing tuberculosis effectively.