Sleep Study Test (Polysomnography)
A Sleep Study Test, also known as Polysomnography (PSG), is a comprehensive diagnostic test used to evaluate sleep disorders by recording physical and physiological activity during sleep. The test helps healthcare providers identify the causes of sleep disturbances and determine appropriate treatment plans.
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A sleep study is an overnight test that monitors various body functions while a person sleeps. It is typically conducted in a sleep laboratory under controlled conditions, though some studies may be performed at home using portable equipment.
During the test, sensors are placed on the body to measure brain activity, eye movements, heart rate, breathing patterns, oxygen levels, muscle activity, and body movements. The collected data is analyzed by trained sleep specialists to diagnose sleep-related conditions.
Sleep studies are painless and non-invasive, and patients are encouraged to follow their normal sleep routine as much as possible during the test.
| Specification | Details |
|---|---|
| Test Type | In-lab Polysomnography (PSG), Home Sleep Apnea Test (HSAT) |
| Parameters Monitored | Brain waves (EEG), Eye movements (EOG), Muscle activity (EMG), Heart rate (ECG), Respiratory airflow, Oxygen saturation (SpOâ‚‚), Body position and limb movements |
| Test Duration | 6–8 hours (Overnight) |
| Patient Preparation | Avoid caffeine/alcohol, follow normal sleep routine |
| Test Environment | Sleep laboratory or home-based setup |
| Procedure Type | Non-invasive and painless |
| Supervision | Conducted by trained sleep technicians |
| Result Availability | Within a few days after test completion |
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Dr. Chetna Patil is a highly qualified neurologist, neurophysician in PCMC, Pune. She practices at Advanced Brain & Spine Clinic in Wakad, Pune. She has 12+ years of experience of treating patients with neurological diseases.Â
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