Polysomnography

What is Polysomnography?

Polysomnography, commonly known as a sleep study, is a comprehensive diagnostic test used to identify sleep disorders. The test records your brain waves, blood oxygen levels, heart rate, breathing patterns, and eye and leg movements during sleep. Polysomnography is the gold standard for diagnosing conditions like sleep apnea and is conducted in a comfortable sleep lab environment.

What It Measures

• Brain Activity (EEG) — Tracks sleep stages and identifies sleep disturbances
• Eye Movements (EOG) — Monitors REM sleep and other eye movement patterns
• Heart Rate (ECG) — Records cardiac rhythm throughout the night
• Breathing Patterns — Measures airflow, respiratory effort, and oxygen saturation
• Muscle Activity (EMG) — Detects limb movements and muscle tone changes
• Body Position & Snoring — Records sleep position and snoring intensity

Conditions Diagnosed

Polysomnography can help diagnose a range of sleep disorders including obstructive sleep apnea, central sleep apnea, periodic limb movement disorder, narcolepsy, REM sleep behavior disorder, insomnia, and other conditions that affect sleep quality and duration.

What to Expect

You will arrive at the sleep center in the evening. A technologist will attach small sensors to your head and body using a gentle adhesive. These sensors are connected to monitoring equipment that records data while you sleep normally. The test is painless. In the morning, the sensors are removed and you can go about your day. Dr. Singh will analyze the results and schedule a follow-up appointment to discuss findings and any recommended treatments.