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SDS EXAM - NBRC QUESTIONS AND ANSWERS 2024
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SDS EXAM - NBRC QUESTIONS AND ANSWERS 2024
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SDS EXAM - NBRCAn 8 year old pt in stage R has a rr of 24 and a 9 sec period without any airflow or
resp effort. How much does his SpO2 have to drop to for this event to be scored
as a central apnea?
a. 2%
b. 3 %
c. 4%
d. 5% - ANSWERS-b.
While performing a CPAP titration study, the sleep tech observes intermittent
quadgemeny. The pt is currently in stage R while bi-level PAP is 14/10cm. Spo2
remains in low 90's. Which of the following should the sleep tech do?
a. continue study
b. add O2 to bi-level PAP
c lower IPAP
d. Awaken the pt - ANSWERS-a.
(add O2 when SpO2 < 88% for 5 or more min)
A 30 sec calibration signal must be performed and stored as part of the pt record
to document...
a. the integrity of the electrode wires
b. impedence readings to not exceed 5kOhms
,c. the pt sensors are operating within acceptable limits
d. polarity relative to instrument settings for each channel - ANSWERS-d.
(Definition of Machine Cals?)
Describe the three recommended placement methods to record chin EMG -
ANSWERS-1. Midline - 1cm below edge of mandibale
2. Left - 2cm below the edge of mandible and 2cm left of midline
3. Right - 2cm below edge of midline and 2cm rt of midline
What type of artifact are HFF mainly used to attenuate - ANSWERS-muscle artifact
in EEG channels
What is the frequency and ampilitude criteria for delta waves - ANSWERS-0.5 -
2Hz
What stage of sleep are delta waves - ANSWERS-N3
What stage of sleep makes up 30 - 35% TST for adults - ANSWERS-N3
What % of TST does N2 makes up for adults - ANSWERS-45 - 55%
,REM accounts for what % of TST for adults - ANSWERS-less than 30%
Normal value for PLMS index - ANSWERS-Less than 5 PLMs per hour of sleep
Lowest SpO2 during a sleep study is known as - ANSWERS-Saturation Nadir
A split night study is recommended for an AHI of ____ or more during at least ___
hours of baseline recording, with at least ______ hours of time remaining for
titration - ANSWERS-40
2
3
Formula for calculation of BMI - ANSWERS-Weight (lbs) / Height (in) squared x 703
EKG artifact is commonly seen in pts who are obese and pts with which two types
of cardio-pulmonary and cardio-vascular d/o - ANSWERS-CHF and HTN
Define Pen blocking and list two methods to resolve this issue - ANSWERS-Occurs
when the GAIN setting is TOO high
↑ Sensitivity or ↓ Gain for immediate solution
Electrode popping can be recognized by what on a montage - ANSWERS-Sharp
high voltage deflections
, During titration, increases in pressure are done in ___ to ___ increments with a
time duration of more than ___ minutes - ANSWERS-1 - 2.5 cmH20
5 min
For pts under the age of 12, increase CPAP for:
____ OSA(s)
____ OSH(s)
____ RERA(s)
____ mins of loud snoring - ANSWERS-1 OSA
2 OSHs
3 RERAs
1 min loud snoring
For adults being titrated with BiPAP, increase both I and E PAP for which two
events - ANSWERS-OSAs
Mixed Apneas
For adults being titrated with BiPAP, increase only I PAP for which three events -
ANSWERS-OSH
RERAs
Snoring
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