Scoring and Sleep Stages B (p. D-14 - D-19) Flashcards
What does PLMS stand for? (Also known as ___ ___)
What does RLS stand for?
Periodic Limb Movement Syndrome (AKA Nocturnal Myoclonus)
Restless Leg Syndrome
What are some qualities about PLMS that are not present in RLS? (x2)
Only occurs during sleep.
Duration is 0.5 sec to 10 sec
Most often occurs in stage 2 sleep
What are some qualities about RLS that are not present in PLMS? (x3)
Can occur during sleep or during the day
It is an intrinsic sleep disorder
Symptoms worse during the evening, making falling asleep difficult.
RLS is most common in what conditions? (x3)
Post-op, pregnancy, and in uremia
What does RBD stand for?
REM Behavior Disorder
What stage of sleep is bruxism most often seen?
Stage 2
What are the symptoms of bruxism?
Jaw/shoulder/ear pain
Insomnia
Morning headaches
Depression
Specifications for routine PSG recordings’ sampling rates:
Which ones are desirable at 500 Hz, minimal of 200 Hz? (x5)
ECG EOG EMG EEG Snoring Sounds
Specifications for routine PSG recordings’ sampling rates: Which ones are desirable at 100 Hz, minimal 25 Hz? (x4)
Nasal Pressure
Esophageal Pressure
Airflow
Rib Cage & Abdominal Movements
Specifications for routine PSG recordings’ filter settings: Which ones are 0.3 Hz low-frequency filter and 35 Hz high-frequency filter? (x2)
EEG and EOG
Specifications for routine PSG recordings’ filter settings: Which ones are 10 Hz low frequency filter and 100 Hz High frequency filter?
EMG and snoring
Specifications for routine PSG recordings’ filter settings: Which one is 0.3 Hz low frequency filter and 70 Hz high frequency filter? (x1)
ECG
Specifications for routine PSG recordings’ filter settings: Which one is 0.1 Hz low frequency filter and 15 Hz high frequency filter?
Respiration
Specifications for routine PSG recordings’ sampling rates:
Which ones are desirable at 25 Hz, minimal of 10 Hz? (x1)
Oxymetry
Specifications for routine PSG recordings’ sampling rates:
Which ones are desirable at 1 Hz, minimal of 1 Hz? (x1)
Body Position
What are the maximum electrode impedances for routine PSG recordings?
5 K Ohm
What is the minimum Digital Resolution for routine PSG recordings?
12 bits per sample
What are the recommended EEG derivations for F4, C4, and O2?
M1
Where should the backup electrodes be placed in case of malfunction?
F3, C3, O1, and M2
To stage sleep, a minimum of three EEG channels are required. What are they?
Frontal, central, and occipital derivations
What are the recommended EOG derivations and electrode positions?
__ - __ and __-__.
E1 - M2 and E2-M1
Electrode positions for EOG: Where is E1 placed? Where is E2 placed?
E1: 1 cm below and 1 cm lateral to the left outer canthus
E2: 1 cm above and 1 cm lateral to the right outer canthus
Why do we record eye movements?
To determine REM and NREM
Capture slow eye movements
What is the standard calibration voltage for EOG?
50 uV
What is an alternate derivation to EOG for E1 and E2?
E1: Place 1 cm out and 1cm below the left outer canthus
E2: 1 cm out and 1 cm below the right outer canthus
When reading an EOG, if the waveform is going up, it’s considered (positive or negative). If the waveform is going down, it’s considered (positive or negative).
If the waveform is going up, it’s negative. If the waveform is going down, it’s positive. Very counterintuitive.
What does ALMA stand for?
Alternating Leg Movement Activity
D-14
How do you score sleep onset?
The start of the first epoch scored as any stage other than stage W. (D-26)
