Advanced Patient Assessment Practice Exam

What is a key feature of obstructive sleep apnea?

1. Excessive daytime sleepiness

2. Chronic night sweats

3. A persistent cough

4. Frequent headaches

The correct answer is: Excessive daytime sleepiness

A key feature of obstructive sleep apnea is excessive daytime sleepiness. This condition is characterized by intermittent airway obstruction during sleep, leading to disrupted sleep patterns and decreased oxygenation. As a result of these repeated awakenings and poor sleep quality throughout the night, individuals often experience significant daytime sleepiness. This symptom can severely affect daily functioning, including work performance and overall quality of life. Obstructive sleep apnea also has other associated symptoms, but excessive daytime sleepiness is notably the most characteristic and prominent feature, often prompting individuals to seek medical evaluation. This symptom is particularly critical as it may indicate the severity of the condition and the need for further treatment or intervention. While chronic night sweats, a persistent cough, and frequent headaches can occur in various medical conditions, they are not defining features of obstructive sleep apnea. Night sweats might suggest underlying infections or endocrine disorders, a persistent cough could indicate respiratory issues, and headaches may arise from tension or other causes rather than the sleep disorder itself. Thus, excessive daytime sleepiness distinctly highlights the impact of obstructive sleep apnea on an individual's daily life.