AASM Study Guide
What is the minimum number of consecutive LM needed to define a
PLM series? - ✔ ✔ 4 LMs
What is the minimum period length between LM? - ✔ ✔ 5 seconds
What is the maximum period of length between LM? - ✔ ✔ 90
seconds
What are leg movements on 2 different legs that are speared by less
than 5 seconds counted as? - ✔ ✔ A single leg movement
What is the minimum number of bursts needed to make a train of
bursts in HFT? - ✔ ✔ 4 bursts
What does "HFT" stand for? - ✔ ✔ Hypnagogic Foot Tremor
What is the minimum frequency of the EMG bursts in HFT? - ✔ ✔
0.3Hz
What is the maximum frequency of EMG bursts in HFT? - ✔ ✔ 4.0Hz
What does "EFM" stand for? - ✔ ✔ Excessive Fragmentary
Myoclonus
What is the maximum EMG burst duration seen in EFM? - ✔ ✔
150msec
How many minutes if NREM sleep with EFM must be recorded? - ✔
✔ 20 minutes
, How many EMG potentials per minute must be recorded for EFM? - ✔
✔ 5 EMG potentials
Bruxism consists of what? - ✔ ✔ A brief (phasic) or sustained (tonic)
elevations of chin EMG activity that are 2X the amplitude of
background EMG
Brief chin EMG elevations are scored as bruxism if they have what two
characteristics? - ✔ ✔ -last 0.25-2sec
-3 elevations occur in a regular sequence
How are sustained EMG elevations of chin EMG scored as bruxism? - ✔
✔ If the duration is more than 2 seconds
How can a new episode of bruxism be scored? - ✔ ✔ A period of at
least 3 seconds of stable background chin EMG
How can bruxism be scored reliably by audio in combination with
polysomnography? - ✔ ✔ There must be a minimum of at least 2
audible tooth grinding episodes/night of polysomnography in a sense of
epilepsy
What does "RMD" stand for? - ✔ ✔ Rhythmic Movement Disorder
What is the minimum frequency for scoring rhythmic movements? - ✔
✔ 0.5Hz
What is the maximum frequency for scoring rhythmic movements? - ✔
✔ 2.0Hz
What is the minimum of individual movements required to make a
cluster of rhythmic movements? - ✔ ✔ 4 movements
What is the minimum number of consecutive LM needed to define a
PLM series? - ✔ ✔ 4 LMs
What is the minimum period length between LM? - ✔ ✔ 5 seconds
What is the maximum period of length between LM? - ✔ ✔ 90
seconds
What are leg movements on 2 different legs that are speared by less
than 5 seconds counted as? - ✔ ✔ A single leg movement
What is the minimum number of bursts needed to make a train of
bursts in HFT? - ✔ ✔ 4 bursts
What does "HFT" stand for? - ✔ ✔ Hypnagogic Foot Tremor
What is the minimum frequency of the EMG bursts in HFT? - ✔ ✔
0.3Hz
What is the maximum frequency of EMG bursts in HFT? - ✔ ✔ 4.0Hz
What does "EFM" stand for? - ✔ ✔ Excessive Fragmentary
Myoclonus
What is the maximum EMG burst duration seen in EFM? - ✔ ✔
150msec
How many minutes if NREM sleep with EFM must be recorded? - ✔
✔ 20 minutes
, How many EMG potentials per minute must be recorded for EFM? - ✔
✔ 5 EMG potentials
Bruxism consists of what? - ✔ ✔ A brief (phasic) or sustained (tonic)
elevations of chin EMG activity that are 2X the amplitude of
background EMG
Brief chin EMG elevations are scored as bruxism if they have what two
characteristics? - ✔ ✔ -last 0.25-2sec
-3 elevations occur in a regular sequence
How are sustained EMG elevations of chin EMG scored as bruxism? - ✔
✔ If the duration is more than 2 seconds
How can a new episode of bruxism be scored? - ✔ ✔ A period of at
least 3 seconds of stable background chin EMG
How can bruxism be scored reliably by audio in combination with
polysomnography? - ✔ ✔ There must be a minimum of at least 2
audible tooth grinding episodes/night of polysomnography in a sense of
epilepsy
What does "RMD" stand for? - ✔ ✔ Rhythmic Movement Disorder
What is the minimum frequency for scoring rhythmic movements? - ✔
✔ 0.5Hz
What is the maximum frequency for scoring rhythmic movements? - ✔
✔ 2.0Hz
What is the minimum of individual movements required to make a
cluster of rhythmic movements? - ✔ ✔ 4 movements
