Ads
related to: narcolepsy screening test- Cataplexy in Narcolepsy
Gain more insights into the signs
and symptoms of cataplexy.
- EDS and Narcolepsy
Excessive daytime sleepiness
is more than just falling asleep.
- Regulating Wakefulness
Discover the role of wake-promoting
neurons in sleep-wake cycle.
- Clinical Assessment
See clinical interview strategies
for identifying ongoing symptoms.
- Narcolepsy Neurobiology
Sleep-wake state stability, role of
the hypothalamus and histamine.
- Diagnosis Resources
View diagnostic criteria for
narcolepsy and find ICD-10 codes.
- Cataplexy in Narcolepsy
Search results
Results From The WOW.Com Content Network
Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").
The test consists of four or five 20-minute nap opportunities set two hours apart, often following an overnight sleep study. During the test, data such as the patient's brain waves, EEG, muscle activity, and eye movements are monitored and recorded. The entire test normally takes about 7 hours during the course of a day.
This test measures whether a person can stay awake during a time when she or he is normally awake. [ 2 ] [ 4 ] Like the MSLT, the MWT is performed in a sleep diagnostic center over 4 - 5 nap periods. A mean sleep onset latency of less than 10 minutes is suggestive of excessive daytime sleepiness.
Narcolepsy is a chronic neurological disorder that impairs the ability to regulate sleep–wake cycles, and specifically impacts REM (rapid eye movement) sleep. [1] The pentad symptoms of narcolepsy include excessive daytime sleepiness (EDS), sleep-related hallucinations, sleep paralysis, disturbed nocturnal sleep (DNS), and cataplexy. [1]
Objective sleep tests include mental and physical examinations and laboratory tests to test the medical background, such as Polysomnography (PSG) and Actigraphy. [9] It is typically not possible to assess these tests prior to an injury. Therefore, it is often not clear whether the sleeping disorder is a result of pre-existing disorders. [9]
The test is based on the idea that the sleepier people are, the faster they will fall asleep. [15] [16] The Maintenance of Wakefulness Test (MWT) is also used to quantitatively assess daytime sleepiness. This test is performed in a sleep diagnostic center. The test is similar to the MSLT as it also relies on a measurement of initial sleep latency.
Ads
related to: narcolepsy screening test