Page 1 of 281
CNIM ASAP EXAM Q. BANK (PREP FOR
NEUROPHYSIOLOGY) *** QUESTIONS AND
ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS |DOWNLOAD AND PASS | LATEST
EXAM UPDATE 2026/2027
Alternating current is used when checking electrode
impedance to
A) Increase electrode polarization
B) avoid electrode resistance
C) Avoid electrode polarization
D) Increase electrode resistance
❖C) Avoid electrode polarization
When monitoring from external anal sphincter, where
should electrodes be placed?
A) 2 finger breadths medially from the edge of the rectum
,Page 2 of 281
B) 2 finger breadths superiorally from the edge of the
rectum
C) 2 finger breadths laterally from the edge of the rectum
D) 2 finger breadths inferally from the edge of the rectum
❖C) 2 finger breadths laterally from the edge of the
rectum
Which of the following opposes any change in current
A) Resistance
B) Inductance
C) Impedance
D) Capacitance
❖B) Inductance
Which of the following is LEAST likely to cause 60Hz
artifact during BAEPs?
,Page 3 of 281
A) Fluid warmer
B) OR table
C) Bipolar bovie
D) Pneumatic drill
❖D) Pneumatic drill
Why should the impedances of stimulating electrodes be
kept low and balanced?
A) To remove power line interference
B) To trigger the stimulator's fault-detection circuitry
C) To decrease high frequency noise
D) To reduce stimulus artifact
❖D) To reduce stimulus artifact
Balanced impedances allows you to:
A) Eliminate artifact rejection
, Page 4 of 281
B) Maximize common mode rejection
C) Optimize horizontal resolution
D) Minimize common mode rejection
❖B) Maximize common mode rejection
Evoked potential data are obliterated with
A) Transcranial doppler use
B) C-arm use
C) Monopolar cautery
D) Midas rex drilling
❖C) Monopolar cautery
Which of the following would most affect the ability to
record BAEPs?
A) Drill
B) Retractor
CNIM ASAP EXAM Q. BANK (PREP FOR
NEUROPHYSIOLOGY) *** QUESTIONS AND
ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS |DOWNLOAD AND PASS | LATEST
EXAM UPDATE 2026/2027
Alternating current is used when checking electrode
impedance to
A) Increase electrode polarization
B) avoid electrode resistance
C) Avoid electrode polarization
D) Increase electrode resistance
❖C) Avoid electrode polarization
When monitoring from external anal sphincter, where
should electrodes be placed?
A) 2 finger breadths medially from the edge of the rectum
,Page 2 of 281
B) 2 finger breadths superiorally from the edge of the
rectum
C) 2 finger breadths laterally from the edge of the rectum
D) 2 finger breadths inferally from the edge of the rectum
❖C) 2 finger breadths laterally from the edge of the
rectum
Which of the following opposes any change in current
A) Resistance
B) Inductance
C) Impedance
D) Capacitance
❖B) Inductance
Which of the following is LEAST likely to cause 60Hz
artifact during BAEPs?
,Page 3 of 281
A) Fluid warmer
B) OR table
C) Bipolar bovie
D) Pneumatic drill
❖D) Pneumatic drill
Why should the impedances of stimulating electrodes be
kept low and balanced?
A) To remove power line interference
B) To trigger the stimulator's fault-detection circuitry
C) To decrease high frequency noise
D) To reduce stimulus artifact
❖D) To reduce stimulus artifact
Balanced impedances allows you to:
A) Eliminate artifact rejection
, Page 4 of 281
B) Maximize common mode rejection
C) Optimize horizontal resolution
D) Minimize common mode rejection
❖B) Maximize common mode rejection
Evoked potential data are obliterated with
A) Transcranial doppler use
B) C-arm use
C) Monopolar cautery
D) Midas rex drilling
❖C) Monopolar cautery
Which of the following would most affect the ability to
record BAEPs?
A) Drill
B) Retractor
