NBRC SDS EXAM NEWEST ACTUAL
EXAM 2025 QUESTIONS AND DETAILED
CORRECT ANSWERS (VERIFIED
ANSWERS) | ALREADY GRADED A+
A pt is noted to have EDS but no REM onset. The pt has
indicated she sometimes sleeps 14 hours per day. The
sleep tech would classify this situation as Correct Answer
Idiopathic insomnia
This dysomnia presents as EDS but without sleep onset
REM or cataplexy Correct Answer Idiopathic Hypersomnia
(Primary Hypersomnia)
List two types of Recurrent Hypersomnia Correct Answer
1. Klein Levin
2. Menstrual Related
This type of Reccurrent Hypersomnia presents with odd
behaviors such as bindge eathing, hypersexuality and
confusion) ...more common in men Correct Answer Klein
Levin syndrome
(Low volt slow wave EEG)
A sleep tech notices that the ECG channel shows a
varying Hr with irregular rhythm. The QRS is approx.
0.15sec wide and only occurs occasionally? What should
the sleep tech recommend? Correct Answer O2 therapy
,Which uses a battery, a thermocouple or a thermistor
Correct Answer Thermistor
After 3 hours of a split night study a pt has 90 documented
central apneas and no obstructive apneas. Minimal
hypopneas are seen. What should the sleep tech FIRST
recommend for the pt Correct Answer CPAP not BiLevel
After 3 hours of a split night study a pt has 90 documented
central apneas and no obstructive apneas. Minimal
hypopneas are seen. Which should the tech recommend
Correct Answer APAP
Which of the following is most likely associated with sleep
apnea?
Drug addiction
Morbid Obesity
Diabetes Mellutis
Chronic Bronchitis Correct Answer Morbid Obesity
A pt is found to have complied with home CPAP use
during a follow-up evaluation. Pt reports no daytime
sleepiness and improve sleep. Current CPAP is 8cmH2O.
The Pt lost 40 lbs since last PSG and has a current BMI of
26kg/m2. A repeat study after2 nights off CPAP shows
AHI 5 and lowest SpO2 92%. EtCO2 is within normal limits
and ABG is:
7.37
PaO2 99torr
PaCO2 42torr
HCO3 24mEq/l
, CPAP is not administered during the second study. When
communicating with the physician, the sleep tech should
recommend that CPAP should be:
Terminated
Continued
Retitrated
Reduced Correct Answer Terminated
What is the difference between the Standford Sleepiness
Scale and the Epworth Correct Answer Standford uses
simple descriptions how a pt feels during the day whereas
Epworth uses (0-3 scale) for each response.
Standford is EASIER and QUICKER
Use key terms to define the Pittsburgh SLeep Quality
Index Correct Answer COMPLEX questionare that rates a
pts sleep over the period of 1 MONTH
RELIABLE and VALID
According to AASM normal pulse rate range while asleep
is Correct Answer 60 - 90
AASM normal rr Correct Answer 10 - 20 breathes per
minute
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