This setup tray contains additional items for a patient hook up including: paper tissues, electrode wires marking pencils, tape measure, gauze pads, hair clips, cotton swabs, alcohol pads
A key part of a sleep study is understanding what is happening while you sleep. By attaching the electrodes to your body, the recorded electrical signals generated by your brain and muscle activity are sent back through the wires and recoded digitally and recognized by a sleep specialist who "reads" or interprets the study. Theses valuable clues reveal whether or not you have a sleep disorder, and if present, how severe it is.
Channel Overview
EEG or ELECTROENCEPHALOGRAM: is a major part of a sleep study. It measures and records four forms of brain wave activity alpha, beta, delta, and theta waves. Alpha waves are usually found during relaxed wakefulness, particularly when your eyes are closed. Theta waves are seen during the lighter sleep stages 1 and 2, while delta waves, the so-called "slow waves occur chiefly in deep sleep" found in sleep stages 3 and 4. EMG or ELECTROMYOGRAM: records muscle activity such as face twitches, teeth grinding, and leg movements. It also helps in determining the presence of REM stage sleep. The amount and duration of these activities provides the doctor important information about your sleep. EOG or ELECTRO-OCULOGRAM: records eye movements. These movements are important in determining the different sleep stages, particularly REM stage sleep. The electrodes are usually placed on the outer aspect of your right eyebrow and along the outer aspects below or beneath your left eye. EKG or ELECTROCARDIOGRAM: records heart activity, such as rate and rhythm. Electrodes are placed on your chest. NASAL AIRFLOW SENSOR: records breathing depth, apnea and hypopnea events. A sensor is placed near your nose and mouth. CHEST/ABDOMEN BELTS: records breathing depth, apnea and hypopnea events. Elastic belts are placed around your chest and abdomen. OXIMETER: records blood oxygen saturation. A band aid like clip is placed on a finger. VIDEO: records body positioning and movements. SNORE MICROPHONE: records snoring. An electrode is placed over your trachea, on your lower neck
