NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
Frequency is measured in _______, and is a unit of 1 cycle
per second
hertz
The height of the waveform (measured in mV or uV)
amplitude
Increases or decreases the signal size of the amplifier signal
Gain
BMI chart
<=18.5 underweight
18.6-24.9 normal
25-29.9 overweight
30-39.9 obese
>40 extremely obese
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
to prevent artifact, which is the most important, quality
hookup or utilization of filters
quality hookup
Causes for troubleshooting ECG artifact
incorrect electrode placement
re-reference electrodes (double reference or average M1-M2
improper site preparation
Best mehtoud to eliminate 60hz artifact
CMR
To eliminate 60Hz artifact
ensure equipment is grounded
avoid extension cords
maintain low impedance
use a single patient ground
ensure proper site preparation/electrode placement
*should be corrected before the study begins
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
Movement artifact
identify and correct the problem and document the action *
not necessary to go into room to correct
Sweat artifact (sway) can be corrected by
cooling the patient
Pen blocking occurs when
the gain is set too high
To correct pen blocking
increase the sensitivity or decrease the gain
Increasing the gain will ____________ the waveform
increase
Increasing the sensitivity will ___________ the waveform
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
decrease
Troubleshoot electrode popping
reapply the electrode
re-reference the electrode
eliminate electrical interferance if possible
Optimal pap pressure is achieved when the AHI is
__________ including supine and REM sleep
less than 5
Preferred treatment for OSA
PAP
CPAP pressure should be increased until all of the following 4
are eliminated
apneas
hypopneas
RERAs
ANSWERS
Frequency is measured in _______, and is a unit of 1 cycle
per second
hertz
The height of the waveform (measured in mV or uV)
amplitude
Increases or decreases the signal size of the amplifier signal
Gain
BMI chart
<=18.5 underweight
18.6-24.9 normal
25-29.9 overweight
30-39.9 obese
>40 extremely obese
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
to prevent artifact, which is the most important, quality
hookup or utilization of filters
quality hookup
Causes for troubleshooting ECG artifact
incorrect electrode placement
re-reference electrodes (double reference or average M1-M2
improper site preparation
Best mehtoud to eliminate 60hz artifact
CMR
To eliminate 60Hz artifact
ensure equipment is grounded
avoid extension cords
maintain low impedance
use a single patient ground
ensure proper site preparation/electrode placement
*should be corrected before the study begins
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
Movement artifact
identify and correct the problem and document the action *
not necessary to go into room to correct
Sweat artifact (sway) can be corrected by
cooling the patient
Pen blocking occurs when
the gain is set too high
To correct pen blocking
increase the sensitivity or decrease the gain
Increasing the gain will ____________ the waveform
increase
Increasing the sensitivity will ___________ the waveform
, NBRC SDS EXAM (ACTUAL 2025) QUESTIONS WITH
ANSWERS
decrease
Troubleshoot electrode popping
reapply the electrode
re-reference the electrode
eliminate electrical interferance if possible
Optimal pap pressure is achieved when the AHI is
__________ including supine and REM sleep
less than 5
Preferred treatment for OSA
PAP
CPAP pressure should be increased until all of the following 4
are eliminated
apneas
hypopneas
RERAs
