SDS EXAM – NBRC UPDATED
QUESTIONS AND CORRECT ANSWERS.
The recommended HFF for recording electocardiograph channel is - ANS 70Hz
Which of the following would best describe rhythmic movement disorder?
1. Minimum frequency of 0.3Hz
2. Max frequency of 2.0Hz
3. Min number of 4 rhythmic movements
a.1,2
b.2,3
c.1,3
d.1,2,3 - ANS b
A 14 year old boy is undergoing an overnight sleep study and has been stared on CPAP. The pt is
currently on 8cmH2O CPAP. What is the recommended max CPAP pressure for this pt -
ANS 20cmH2O
What is max CPAP for pts under 12 years old? - ANS 15cmH2O
A pt recently completed an MSLT having obtained a total score of 10. Which of the following
would best describe managing the pts daytime sleepiness? - ANS Troublesome
Classify the following MSLT scores:
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,0 - 5 minutes...
6 - 10 minutes...
11 - 15 minutes...
16 - 20 minutes... - ANS ...Severe
...Troublesome
...Manageable
...Excellent
During an MSLT a pt has had 5 naps w/o onset of REM...what should be done next?
a. End the study
b. Have pt take 6th nap - ANS b. 6th nap
MSLT is a seris of ____ to ____naps, each ____min long, ____ hours apart.
______ naps will be suffieicent if sleep onset REM has occurred in 2 naps. - ANS 4 to 5 each
20min long and 2 hours apart
4
In MSLT the 1st nap begins ___ to ____ hours after the overnight PSG has concluded -
ANS 1.5 to 3 hours
MSLT is not recommended the morning after what type of study - ANS Split
MSLT is not used to diagnose narcolepsy if the TST on the prior night study was less than ____
hours - ANS 6
State 2 methods for ending a nap in an MSLT - ANS 1. No sleep onset after 20min
2. After 15min of continuous recording following sleep onset
List channels used in sleep montage for an MSLT - ANS EEG (2 leads: Central and Occipital)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, 2 Reference Leads (M1 and M2)
E1 and E2 (Eyes)
2 EMG leads (chin and 2 submentalis only)
ECG
List 3 items that must be scored for MSLT - ANS 1. Sleep latencies for each nap
2. MSLT for the entire test (avg of ALL naps)
3. SOREM periods
Correct postion for and esophageal pH monitoring catheter is... - ANS advance catheter until
pH< 4.0 and then withdraw 5cm, tape and record tube placement at nostril
Describe the anatomic position an esophageal pH catheter should be placed - ANS Cather tip
should be 5cm above the upper border of the lower esophgeal sphincter
Another name for the disinfecting agent Cidex?
How long for this agent to disinfect?
How long for this agent to sterilize - ANS Alkaline gluteraldeyde
10 min
10 hours
Another name for the disinfecting agent Sonacide?
How long for this agent to disinfect?
How long for this agent to sterilize? - ANS Acid gluteraldehyde
10 min
1 hour
An ECG tracing shows a beat with an irregular rhytm, QRS >0.12sec, and a varying rate. The
sleep tech would classify this as - ANS PVC
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND CORRECT ANSWERS.
The recommended HFF for recording electocardiograph channel is - ANS 70Hz
Which of the following would best describe rhythmic movement disorder?
1. Minimum frequency of 0.3Hz
2. Max frequency of 2.0Hz
3. Min number of 4 rhythmic movements
a.1,2
b.2,3
c.1,3
d.1,2,3 - ANS b
A 14 year old boy is undergoing an overnight sleep study and has been stared on CPAP. The pt is
currently on 8cmH2O CPAP. What is the recommended max CPAP pressure for this pt -
ANS 20cmH2O
What is max CPAP for pts under 12 years old? - ANS 15cmH2O
A pt recently completed an MSLT having obtained a total score of 10. Which of the following
would best describe managing the pts daytime sleepiness? - ANS Troublesome
Classify the following MSLT scores:
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,0 - 5 minutes...
6 - 10 minutes...
11 - 15 minutes...
16 - 20 minutes... - ANS ...Severe
...Troublesome
...Manageable
...Excellent
During an MSLT a pt has had 5 naps w/o onset of REM...what should be done next?
a. End the study
b. Have pt take 6th nap - ANS b. 6th nap
MSLT is a seris of ____ to ____naps, each ____min long, ____ hours apart.
______ naps will be suffieicent if sleep onset REM has occurred in 2 naps. - ANS 4 to 5 each
20min long and 2 hours apart
4
In MSLT the 1st nap begins ___ to ____ hours after the overnight PSG has concluded -
ANS 1.5 to 3 hours
MSLT is not recommended the morning after what type of study - ANS Split
MSLT is not used to diagnose narcolepsy if the TST on the prior night study was less than ____
hours - ANS 6
State 2 methods for ending a nap in an MSLT - ANS 1. No sleep onset after 20min
2. After 15min of continuous recording following sleep onset
List channels used in sleep montage for an MSLT - ANS EEG (2 leads: Central and Occipital)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, 2 Reference Leads (M1 and M2)
E1 and E2 (Eyes)
2 EMG leads (chin and 2 submentalis only)
ECG
List 3 items that must be scored for MSLT - ANS 1. Sleep latencies for each nap
2. MSLT for the entire test (avg of ALL naps)
3. SOREM periods
Correct postion for and esophageal pH monitoring catheter is... - ANS advance catheter until
pH< 4.0 and then withdraw 5cm, tape and record tube placement at nostril
Describe the anatomic position an esophageal pH catheter should be placed - ANS Cather tip
should be 5cm above the upper border of the lower esophgeal sphincter
Another name for the disinfecting agent Cidex?
How long for this agent to disinfect?
How long for this agent to sterilize - ANS Alkaline gluteraldeyde
10 min
10 hours
Another name for the disinfecting agent Sonacide?
How long for this agent to disinfect?
How long for this agent to sterilize? - ANS Acid gluteraldehyde
10 min
1 hour
An ECG tracing shows a beat with an irregular rhytm, QRS >0.12sec, and a varying rate. The
sleep tech would classify this as - ANS PVC
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
