A tilt table test is designed to evaluate how your body regulates blood pressure in response to some very simple stresses, including gravity. Blood Pressure is regulated by a set of nerves which operate continuously and subconsciously and are part of the autonomic nervous system. This set of nerves detects certain bodily needs and respond by causing the appropriate changes in blood pressure.The purpose of this part of the autonomic nervous system is to ensure that there is always enough blood going to the brain and to distribute blood to other organs according to their needs. At times, the nerves which contol blood pressure may not operate properly and may cause a reaction which paradoxically causes the blood pressure to drop suddenly. This reaction may produce a fainting spell or a number of symptoms, including lightheadedness. Tilt table testing is designed to determine the likelihood that a patient is susceptible to this type of reaction.
There is no prep needed. When you arrive, the tech will place a blood pressure cuff on your arm. You will then be secured to a table (usually by straps). The table is tilted to a 60 degree angle for 45 minutes. If you feel uncomfortable at any time, you can request that the test to be stopped.
A sleep study test is extremely valuable for diagnosing and treating many sleep disorders, including neurologic disorders, movement disorders, and breathing disorders at night. Electrodes are applied to the scalp, sides of the head, and under the chin, chest, and leg. The electrodes measure brain waves, heart rate, and eye movements. A sensor is placed by the nose and mouth for measurement of airflow. Straps are placed around the rib cage and abdomen for measurement of breathing movements. A clip is placed on a finger for measurment of blood oxygen levels. There are no needles and no pain. The electrodes are connected to a bedside box to relay the signals to a central control room. All patients are videotaped while they sleep.
An EEG is a test to detect abnormalities in the electrical activity of the brain. A technician applies between 16-25 flat metal discs (electrodes) to different positions on your scalp. This test causes no discomfort. Although having electrodes pasted onto your skin may feel strange, they only record activity and do not produce sensation. This test is used to help diagnose the presence and type of seizure disorder, to look for causes of confusion, and to evaluate head injuries, tumors, infections, degenerative diseases and metabolic disturbances that affect the brain.
You must have clean hair. Do not use hair spray or perfume. Do not wear jewlery. If a sleep-deprived EEG is ordered, you will be given instructions on how much sleep is allowed to achieve the best test results.
