To diagnose obstructive sleep apnea, your doctor will perform a physical exam and take a medical and sleep history. The doctor may also ask people who live with you about your sleeping habits.

You might also be asked to take a sleep test called a polysomnogram, or PSG. Sleep testing is performed overnight in a sleep lab and is supervised by a trained technologist. The test will measure various body functions, including:

air flow

blood oxygen levels

breathing patterns

electrical activity of the brain

eye movements

heart rate

muscle activity

A board-certified sleep physician will interpret the findings, identify the correct diagnosis and recommend appropriate treatment options.