Staging
The standard epoch time for use with sleep staging.
What is a 30-second epoch?
The minimal duration requirement for all events.
What is 10 seconds?
True or false, PLMs occurring in both legs simultaneously, should be scored both be scored.
False
According to the AASM, a minimum of 10 continuous seconds of intervening _______ is necessary to score a second arousal.
What is sleep?
This filter attenuates low frequencies.
What is the HFF?
In this sleep stage, 20% or more of the epoch should consist of high amplitude (>75 uV) slow (.05 - 2.0 Hz) waves.
What is stage N3?
The recommended epoch duration for scoring respiratory events.
What is a 120 second epoch?
True or false, PLMs occurring with 10 seconds after a respiratory event should not be scored.
True
According to the AASM scoring guidelines, there must be an EEG frequency shift of at least ________ seconds in duration in order to score an arousal.
What is 3 seconds?
This filter allows fast frequencies to pass through virtually unaffected.
What is the HFF?
This sleep stage consists of SREMS, Theta, and occasional Vertex waves.
What is stage N1?
The respiratory event which can be scored with either a 3% or 4% desaturation criteria.
What is an Obstructive Hypopnea?
The name of the muscle to attach PLM electrodes to.
What is the anterior tibialis?
Arousals in this stage of sleep require an accompanying increase SMEMG amplitude.
What is REM sleep?
What is the 60-Hz filter?
This sleep stage contains K-complexes, sleep spindles, and limited-no eye movements.
What is stage N2
This respiratory event begins with an absence of respiratory airflow and respiratory effort, and then concludes with he return of respiratory effort but without respiratory airflow.
What is a mixed apnea?
4 of these scored with a 90-second window will be a PLM _________.
What is a sequence?
Arousals cannot be scored based on changes in ________________ amplitude alone.
What is SMEMG?
This component of the amplifier displays the polarity differences between two inputs.
This sleep stage is includes saw-tooth waves, and has the lowest voltage SMEMG amplitude.
What is REM?
This is scored if there are at least 3 consecutive cycles of cyclical crescendo-decrescendo change in breathing amplitude accompanied by at least one of the following: five or more central apneas and hypopneas per hour of sleep; and a cyclic crescendo-decrescendo change in breathing amplitude and duration of at least 10 consecutive minutes.
What is Cheyne-Stokes Breathing?
This limb movement disorder occurs primarily during stage N2 sleep.
What is PLM movement disorder?
Three seconds of ________________ is not scored as an arousal unless a 10 second episode of alpha-free sleep precedes.
What is alpha sleep?
This feature of the amplifier rejects signals common to two inputs.
What is Common Mode Rejection?