NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
What is the minimum and preferred sampling rate? M
h h h h h h h h
in 200Hz; Preferred 500Hz
h h h
Which respiratory equipment is used to measure apneas? Ther
h h h h h h h h
mistor/thermocouple
What are some common troubleshooting issues for the thermist
h h h h h h h h
or?
Warm the room, remove fan, moisture on the sensor, battery ne
h h h h h h h h h h
eds to be changed
h h h
What is considered the gold standard for measuring respiratory
h h h h h h h h h
effort?
RIP beltsh
What equipment is used to measure RERAs and Hypopneas? n
h h h h h h h h h
asal pressure transducer (PTAF)
h h h
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
Infants: if 2 or more psg characteristics are discordant for stage
h h h h h h h h h h h
R or N, score the stage as
h h h h h h
Transitional
EEG characteristic generally only seen in stage N, characterize
h h h h h h h h
d by at least 3 alternating runs of bilaterally symmetrical synchr
h h h h h h h h h h
onous high voltage bursts of 1-3Hz delta activity lasting 5-
h h h h h h h h h
6 seconds
h
trace alternate h
continuous low voltage mixed frequency EEG with delta wave
h h h h h h h h
s and predominately theta activity
h h h h
low voltage irregular
h h
continuous synchronous symmetrical EEG activity, predomina
h h h h h
tely high voltage 1-3Hz delta activity
h h h h h
high voltage slow
h h
Infants: 4+ of the following are present:
h h h h h h
~eyes closed with no eye movements
h h h h h
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
~chin EMG present
h h
~regular respiration h
~Trace alternate, High voltage slow, or spindles
h h h h h h
~reduced movement compared to wake NR
h h h h h
EM
Infants: 4+ present: h h
~low chin tone
h h
~eyes closed with at least one REM
h h h h h h
~irregular respiration h
~mouthing, sucking, twitches, or brief head movements
h h h h h h
~EEG continuous pattern without spindles
h h h h h
REM
Infants: If an epoch contains multiple REM & NREM character
h h h h h h h h h
istics
Score as transitional
h h
TST
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
sum of all stages, minus wake; dont forget to convert epochs to
h h h h h h h h h h h h
minutes!!
Testing time from lights out to lights on TRT
h h h h h h h h
h or TIB
h
Sleep efficiency TST/TI
h h
B
Normal sleep efficiency h h h
80-94%
decreased sleep efficiency h h
<80% insomnia h
increased sleep efficiency h h
>95% seen in narcolepsy and idiopathic hypersomnia
h h h h h h
h h h h h h
WITH ANSWERS h
What is the minimum and preferred sampling rate? M
h h h h h h h h
in 200Hz; Preferred 500Hz
h h h
Which respiratory equipment is used to measure apneas? Ther
h h h h h h h h
mistor/thermocouple
What are some common troubleshooting issues for the thermist
h h h h h h h h
or?
Warm the room, remove fan, moisture on the sensor, battery ne
h h h h h h h h h h
eds to be changed
h h h
What is considered the gold standard for measuring respiratory
h h h h h h h h h
effort?
RIP beltsh
What equipment is used to measure RERAs and Hypopneas? n
h h h h h h h h h
asal pressure transducer (PTAF)
h h h
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
Infants: if 2 or more psg characteristics are discordant for stage
h h h h h h h h h h h
R or N, score the stage as
h h h h h h
Transitional
EEG characteristic generally only seen in stage N, characterize
h h h h h h h h
d by at least 3 alternating runs of bilaterally symmetrical synchr
h h h h h h h h h h
onous high voltage bursts of 1-3Hz delta activity lasting 5-
h h h h h h h h h
6 seconds
h
trace alternate h
continuous low voltage mixed frequency EEG with delta wave
h h h h h h h h
s and predominately theta activity
h h h h
low voltage irregular
h h
continuous synchronous symmetrical EEG activity, predomina
h h h h h
tely high voltage 1-3Hz delta activity
h h h h h
high voltage slow
h h
Infants: 4+ of the following are present:
h h h h h h
~eyes closed with no eye movements
h h h h h
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
~chin EMG present
h h
~regular respiration h
~Trace alternate, High voltage slow, or spindles
h h h h h h
~reduced movement compared to wake NR
h h h h h
EM
Infants: 4+ present: h h
~low chin tone
h h
~eyes closed with at least one REM
h h h h h h
~irregular respiration h
~mouthing, sucking, twitches, or brief head movements
h h h h h h
~EEG continuous pattern without spindles
h h h h h
REM
Infants: If an epoch contains multiple REM & NREM character
h h h h h h h h h
istics
Score as transitional
h h
TST
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS
h h h h h h
WITH ANSWERS h
sum of all stages, minus wake; dont forget to convert epochs to
h h h h h h h h h h h h
minutes!!
Testing time from lights out to lights on TRT
h h h h h h h h
h or TIB
h
Sleep efficiency TST/TI
h h
B
Normal sleep efficiency h h h
80-94%
decreased sleep efficiency h h
<80% insomnia h
increased sleep efficiency h h
>95% seen in narcolepsy and idiopathic hypersomnia
h h h h h h
