For the MSLT, a series of short naps beginning the morning after the overnight study, are recorded. The sleep specialists look for the amount and type of sleep recorded during the naps to help understand sleep patterns and to initiate treatment. The sleep technicians apply a number of electrodes on the head and skin to record various activities (brain wave, muscle movements, eye movements, breathing through the mouth and nose, snoring, heart rate and leg movements). Flexible elastic belts will be placed around the chest and abdomen to measure breathing. A pulse oximeter is typically clipped to the index finger as well.

Once the study is completed, a follow-up appointment is scheduled in the clinic to discuss and review the study and all appropriate recommendations. Throughout the process, the referring physician is sent all reports with recommendations.

Typical MSLT Patients
The most common patients that experience MSLT are pediatric (three years of age through age 15) through the geriatric population.

What You Should Know Prior to the Test
On the day of the study, caffeine (coffee, tea, cola and chocolate) should be avoided after 2:00 pm. All medications should be taken as usual. Before coming in for the study, hair should be washed and dried and no hair products (hair spray, gels or oils) should be used. Assuming the MSLT follows an overnight study, it is suggested that the patient pack an overnight bag for his/her comfort. In addition, patients are permitted to bring their own pillow if they feel they will sleep better.

All patients are asked to arrive 30 minutes prior to their appointment time. They are to report to Outpatient Registration and will be given directions to the department once registration is completed.