Certified Polysomnographic Technician (CPSGT) 2025 – 400 Free Practice Questions to Pass the Exam

An overnight polysomnography is a comprehensive sleep study that is primarily used to diagnose various sleep disorders, including conditions such as insomnia, sleep apnea, and narcolepsy. This diagnostic tool records multiple physiological parameters during sleep, including brain waves, oxygen levels, heart rate, and breathing patterns. By analyzing the collected data, healthcare professionals can identify disruptions in normal sleep patterns and assess the severity of sleep-related issues.

In contrast, promoting restful sleep through guided meditation does not involve the technical assessment that polysomnography provides. Similarly, while evaluating weight loss strategies may be significant, it is not directly related to the primary function of a sleep study. Measuring daytime alertness levels, though relevant in understanding the effects of sleep disorders, is not the main purpose of an overnight polysomnography, which focuses more on understanding and diagnosing specific sleep conditions during actual sleep at night.