ACTUAL Exam Questions and CORRECT
Answers
minimum digital resolution - CORRECT ANSWER - 12 bits per sample
latency to stage - CORRECT ANSWER - period from SO to 1st epoch of stage
(n1,n2,n3,r)-SO/2
Airflow sampling rate - CORRECT ANSWER - 100hz - Desirable
25hz - Minimal
Oximetry, Transcutaneous PCO2 sampling rates - CORRECT ANSWER - 25hz - Desirable
10hz - Minimal
Nasal pressure, EtCO2, PAP sampling rates - CORRECT ANSWER - 100hz - Desirable
25hz - Minimal
Esophageal pressure sampling rates - CORRECT ANSWER - 100hz - Desirable
25hz - Minimal
body position sampling rates - CORRECT ANSWER - 1hz - Desirable
1hz - Minimal
Rib cage/ADB movements sampling rates - CORRECT ANSWER - 100hz - Desirable
25hz - Minimal
,Oronasal thermal flow, Effor belts filter settings - CORRECT ANSWER - LFF 0.1 Hz
HFF 15 Hz
EEG filter settings - CORRECT ANSWER - LFF 0.3 Hz
HFF 35 Hz
Nasal pressure filter settings - CORRECT ANSWER - Lff DC or < 0.3 Hz
Hff 100 Hz
PAP Device flow filter settings - CORRECT ANSWER - Lff DC
Hff DC
Snore Filter Settings - CORRECT ANSWER - LFF 10Hz
HFF 100 Hz
EOG derivations and electrode positions - CORRECT ANSWER - E1-M2, E2-M2
E1 placed 1 cm below and 1 cm lateral to left outer canthus
E2 placed 1 cm above and 1 cm lateral to right outer canthus
EMG derivations and electrode positions - CORRECT ANSWER - chinZ at midline 1 cm
above inferior edge of mandible
chin2/3 at 2 cm below inferior edge of mandible (right/left)
Vertex Sharp Waves (V-Waves) - CORRECT ANSWER - Sharply contoured waves with
duration <0.5 seconds maximal over the central region and distinguishable from the background
activity
,Slow eye movements - CORRECT ANSWER - EOG events consisting of conjugate,
reasonably regular, sinusoidal eye movements with an initial deflection usually lasting
>500msec,
K complex - CORRECT ANSWER - well delineated negative sharp wave immediately
followed by a positive component with total duration of >0.5 sec.
sleep spindles - CORRECT ANSWER - a train of distinct sinusoidal waves with frequency
11-16hz with a duration >0.5 seconds, usually maximal in amplitude in the central derivations.
age for pediatric sleep staging rules - CORRECT ANSWER - 2 months post term or older
Score asystole - CORRECT ANSWER - cardiac pauses greater than 3 seconds
Score wide complex tachycardia - CORRECT ANSWER - For a rhythm at least 3 consecutive
beats a rate greater than 100 pm with QRS duration of greater than or equal to 120 msc.
Score narrow complex tachycardia - CORRECT ANSWER - For a rhythm at least 3
consecutive beats at a rate greater than 100 pm with QRS duration of less than 120 msec
Score atrial fibrillation - CORRECT ANSWER - if there are irregularly irregular QRS
complexes associated with replacement of consistent P waves by rapid oscillations that vary in
size, shape, and timing.
sustained sinus Brady or tachy is defined by - CORRECT ANSWER - more than 30 seconds
of a stable rhythm to distinguish it from transient responses, sleep disordered breathing, or
arousals
Leg leads - CORRECT ANSWER - placed longitudinally and symmetrically in the middle of
thr anterior tibialis muscle 2-3 cm apart or 1/3 length of muscle.
, Arm Leads - CORRECT ANSWER - placed on the flexor digit digitorum superficialis for
detection of transient muscle activity in REM.
scoring leg movements - CORRECT ANSWER - 0.5 - 10 seconds
increase in amplitude of 8 uV above resting EMG
PLM series - CORRECT ANSWER - 4 or more consecutive LM within 5-90 seconds.
LM on opposite legs less than 5 sec apart count as one movement.
Alternating leg muscle activation ALMA - CORRECT ANSWER - 4 or more alternating
EMG bursts
0.5 - 3.0 hz
What is the purpose of the low frequency filter? - CORRECT ANSWER - Eliminating
undesired slow frequencies
What is the RECOMMENDED number of observed hypopneas needed in an adult patient before
increasing the pressure during a titration? - CORRECT ANSWER - 3
What occurs during hypoventilation? - CORRECT ANSWER - Increased PCO2
DECREASING the sensitivity would result in what change in the EEG waveform? - CORRECT
ANSWER - Increase the height of the waveform
Which medication would MOST likely be used for the treatment of RLS? - CORRECT
ANSWER - Ropinirol
What is the recommended number of observed apneas needed for an adult patient before
increasing the pressure during a titration? - CORRECT ANSWER - 2