What is the primary purpose of using a CPAP machine for the treatment of obstructive sleep apnea (OSA)?
To deliver a continuous flow of air pressure to keep the airway open
To reduce daytime sleepiness
To improve sleep quality
To promote weight loss
The Correct Answer is A
A. Delivering a continuous flow of air pressure to keep the airway open is correct. CPAP (Continuous Positive Airway Pressure) prevents airway collapse during sleep, allowing for uninterrupted breathing and oxygenation.
B. Reducing daytime sleepiness is a benefit of CPAP use, but it is not its primary purpose—it is a secondary effect of improved oxygenation and sleep continuity.
C. Improving sleep quality also occurs with CPAP therapy, but this is an outcome rather than the primary purpose.
D. Promoting weight loss is not the function of CPAP therapy, though weight loss can help reduce OSA severity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Obtaining an ECG is important but not the first priority. The immediate goal is to reduce the heart's oxygen demand.
B. Having the client sit down immediately is correct. Stopping activity reduces cardiac workload and oxygen demand, preventing further ischemia or infarction.
C. Assessing vital signs is important but should be done after stopping activity. While vital signs provide critical information, immediate intervention is needed first.
D. Administering sublingual nitroglycerin is appropriate but should be done after ensuring the client is seated. This prevents hypotension and syncope from occurring while standing.
Correct Answer is ["C","D","E"]
Explanation
A. Ascites is more commonly associated with right-sided heart failure. Right-sided failure leads to systemic congestion, causing fluid accumulation in the abdomen.
B. Edema in the legs and feet is a symptom of right-sided heart failure. Left-sided failure primarily affects the lungs, while right-sided failure leads to peripheral edema.
C. Crackles in the lungs are expected in left-sided heart failure. Pulmonary congestion results from blood backing up into the lungs, leading to fluid accumulation in the alveoli.
D. Confusion can occur due to decreased cardiac output and poor oxygenation to the brain. Clients with severe heart failure may experience cognitive changes or altered mental status.
E. Exertional dyspnea is a hallmark of left-sided heart failure. The inability of the left ventricle to pump effectively leads to pulmonary congestion, making breathing difficult during physical activity.
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