What are typical indications for a polysomnography study?

Polysomnography is a comprehensive sleep study used to diagnose various sleep disorders. The indications for conducting this study often revolve around specific symptoms that suggest disruptions in normal sleep patterns. Symptoms such as excessive daytime sleepiness, insomnia, and suspected sleep apnea are closely linked to underlying sleep-related issues that a polysomnography study can help identify.

Excessive daytime sleepiness may indicate disorders like obstructive sleep apnea or narcolepsy, while insomnia can be associated with a range of sleep disturbances. Suspected sleep apnea is particularly relevant for polysomnography, as the study is designed to evaluate breathing patterns, oxygen levels, and various sleep stages during the night, thus providing crucial insights for diagnosis and treatment.

The other options, while they may indicate other health issues, do not specifically align with the primary reasons for referring a patient for a polysomnography study. Chronic fatigue syndrome and obesity could be related to sleep issues but are not direct indications. Similarly, seasonal affective disorder, anxiety disorders, headaches, and body pain may require evaluation, but they do not specifically point to the need for polysomnography. Therefore, the correct answer highlights the direct relationship between specific sleep symptoms and the need for a sleep study.