A Polysomnography (PSG) test is the most common multi-parametric test used in the study of sleep. The word Polysomnography is derived from the Greek word 'polus' for "many, much", the Latin word 'somnus' meaning "sleep" and the Greek word'graphein' meaning to write "to write". Approximately 50 - 70 million Americans are reportedly affected by Sleep Deprivation.
What does a Polysomnography sleep test do?
A Polysomnogram sleep test measures sleep cycles and stages of sleep and monitors and records the following elements:
- Sleep patterns and stages
- Blood oxygen levels
- Body position
- Brain waves (EEG)
- Breathing rate
- Electrical activity of muscles
- Eye movements
- Leg movements
- Heart rate
Why the Polysomnography Sleep Test is conducted
Sleep studies or tests are conducted to confirm and gain additional information about a patient's sleep problems. A Polysomnogram might be used to confirm or detect any of the following conditions: