Sleep Studies (Polysomnography)  ​

Polysomnography, also called a sleep study, is a test used to diagnose sleep disorders. It records your brain waves, the oxygen level in your blood, heart rate and breathing, as well as eye and leg movements during.

In addition to helping diagnose sleep disorders, polysomnography may be used to help adjust your treatment plan if you've already been diagnosed with a sleep disorder.

Multiple Sleep Latency Test (MSLT) measures how soon a person falls asleep in a quiet environment, and helps on the diagnosis of sleep disorders including narcolepsy. ​

  • Bring your medicines, pillow, night wear and food items to help you sleep comfortably.

  • Wash your head with shampoo or soap and let it dry.

  • Do not apply hair oil, cream or gel to your hair after washing.

  • Do not take any medicine or aids that help you sleep.

  • Do not drink any caffeinated items e.g. tea, coffee, energy drink and chocolate at least 6 hours before procedure.

  • Please have a meal before procedure.

  • Do not take a nap on the day of the test.

  • Only one attendant will be allowed with the patient in the room if needed.

  • Follow the instructions provided at the time when the appointment is made.

  • Arrive be on time. Punctuality is important.​

You will be asked to come to the sleep centre at a time in the evening. Then you will be asked to dress comfortably and lie down. The technologist will then place several electrodes on your head and body and you will be asked to follow your routine pattern and fall asleep. 

Neurophysiology Consulting Clinic,
The Aga Khan University Hospital, Main Campus
Stadium Road, Karachi
Call (+92) 21 3486 1541 
(+92) 21 3486 1542

Timings:  9:00 a.m. to 5:30 p.m. (Mon – Fri)