Difference between revisions of "Category:CPAP Definitions"
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Revision as of 16:52, 27 October 2009
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A
Arousal: An interruption of sleep lasting greater than 3 seconds.
B
BR Arousal index: The number of breathing related arousals(apnea, hypopnea, snoring & RERAs)multiplied by the # hours of sleep.
Bruxism: Grinding of the teeth.
C
Central apnea: A respiratory episode where there is no airflow and no effort to breathe lasting greater than 10 seconds.
E
EEG/EOG: Comments about sleep stages, brain waves (EEG), or eye movements (EOG)
EKG/ECG: Comments about heart rate, abnormal heart beats, etc.
EMG: Comments about leg movements and or teeth grinding (bruxism).
H
Hypopnea: A respiratory episode where there is partial obstruction of the airway lasting greater than 10 seconds. Also called partial apnea or hypo-apnea.
N
Non-supine: Sleeping in any position other than on the back.
NSR: Normal sinus rhythm.
NPSG: Nocturnal Polysomnogram, or sleep study.
(#)Number of Awakenings: The number of pages scored as wake after sleep onset.
O
Obstructive apnea: A respiratory episode where there is a complete cessation of airflow lasting greater than 10 seconds.
P
PLMs: Periodic limb movements.
PLM arousal index: The number of periodic limb movements that cause arousals multiplied by the number of hours of sleep.
PSGT: Polysomnographic technologist.
R
REM latency: Latency to REM(dreaming) from sleep onset.
RERAs: Respiratory effort related arousals. Episodes that are not apneas or hypopneas, often related to loud snoring, that generally do not cause a decrease in oxygen saturation.
Respiratory: Any specific comments about respiratory events.
RPSGT: Registered polysomnographic technologist.
S
Sleep efficiency: Total sleep time multiplied by time in bed.
Sleep latency: The first 30 seconds (one `epoch' of recording time) of sleep.
Sleep onset: The first 90 seconds (3 `epochs) of uninterrupted sleep.
Sleep stage shifts: The number of incidents of sleep stage changes.
Snoring intensity: Level of snoring loudness determined by the sleep technologist. Ranging in degrees from mild to very loud snoring.
Spontaneous arousal index: The number of spontaneous arousals (e.g. arousals not related to respiratory events, limb movements, snoring, etc) multiplied by the number of hours of sleep.
Stages of Sleep Stage 1: The lightest stage of sleep. Transitional stage from wake. top
Stage 1 shifts: The number of times the sleep stage changed to stage 1.
Stage 2: The first true stage of sleep.
Stages 3/4: The deepest, most restorative sleep.
Stage REM: The dreaming stage; Normally occurs every 60-90 minutes.
Supine: Sleeping on back.
T
Time in bed: The time in the study from `Lights Out' to `Lights On'.
Total arousal index: Total number of all arousals multiplied by the number of hours of sleep.
Total # of PLMs: The number of leg movements in sleep that last greater than 0.5 seconds.
Pages in category "CPAP Definitions"
The following 35 pages are in this category, out of 35 total.