RPSGT MOCK EXAM NEWEST 2026/ 2027 ACTUAL
EXAM TEST BANK| COMPLETE 350 REAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) GRADED A+| RPSGT MOCK
EXAM PREP (BRAND NEW!!)
1. Where should the ground electrode be placed for a standard
polysomnogram according to AASM guidelines?
A) Fz
B) C4
C) Any mastoid
D) The center of the forehead (Fpz)
Answer: D
Rationale: AASM recommends the ground electrode be placed at
Fpz (center of forehead) or Cz. While mastoids can be used, Fpz is
1
,preferred as it is electrically neutral and away from major muscle
groups that could cause artifact.
2. To record a clear EOG for REM sleep, the recommended
montage is:
A) F4-M1
B) E1-M2 and E2-M2
C) C4-M1
D) Chin1-Chin2
Answer: B
*Rationale: AASM specifies E1 (1 cm below left outer canthus)
referenced to M2, and E2 (1 cm above right outer canthus)
referenced to M2. This captures out-of-phase conjugate eye
movements characteristic of REM sleep. *
2
,3. Submental EMG electrodes should be placed:
A) On the masseter muscle
B) One on the chin, two below the mandible
C) Three in a triangle – one midline 1 cm above mandible, two 2
cm below mandible on each side of midline
D) One on each side of the jaw
Answer: C
Rationale: AASM specifies a triangular placement: one electrode in
the midline 1 cm above the inferior edge of the mandible, and two
electrodes 2 cm below the mandible on each side of the midline to
capture tonic and phasic chin activity.
4. Which EEG electrode is located 30% above the left pre-
auricular crease?
A) C3
B) P3
3
, C) O1
D) F3
Answer: A
*Rationale: According to the International 10-20 System, C3 is
located 30% above the left pre-auricular crease. This placement
ensures standardized recording across patients and facilities. *
5. Recommended impedance levels for EEG electrodes should
be:
A) Less than 20,000 ohms
B) Less than 5,000 ohms (5 kΩ)
C) At least 20,000 ohms
D) Less than 5 ohms
Answer: B
4
EXAM TEST BANK| COMPLETE 350 REAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) GRADED A+| RPSGT MOCK
EXAM PREP (BRAND NEW!!)
1. Where should the ground electrode be placed for a standard
polysomnogram according to AASM guidelines?
A) Fz
B) C4
C) Any mastoid
D) The center of the forehead (Fpz)
Answer: D
Rationale: AASM recommends the ground electrode be placed at
Fpz (center of forehead) or Cz. While mastoids can be used, Fpz is
1
,preferred as it is electrically neutral and away from major muscle
groups that could cause artifact.
2. To record a clear EOG for REM sleep, the recommended
montage is:
A) F4-M1
B) E1-M2 and E2-M2
C) C4-M1
D) Chin1-Chin2
Answer: B
*Rationale: AASM specifies E1 (1 cm below left outer canthus)
referenced to M2, and E2 (1 cm above right outer canthus)
referenced to M2. This captures out-of-phase conjugate eye
movements characteristic of REM sleep. *
2
,3. Submental EMG electrodes should be placed:
A) On the masseter muscle
B) One on the chin, two below the mandible
C) Three in a triangle – one midline 1 cm above mandible, two 2
cm below mandible on each side of midline
D) One on each side of the jaw
Answer: C
Rationale: AASM specifies a triangular placement: one electrode in
the midline 1 cm above the inferior edge of the mandible, and two
electrodes 2 cm below the mandible on each side of the midline to
capture tonic and phasic chin activity.
4. Which EEG electrode is located 30% above the left pre-
auricular crease?
A) C3
B) P3
3
, C) O1
D) F3
Answer: A
*Rationale: According to the International 10-20 System, C3 is
located 30% above the left pre-auricular crease. This placement
ensures standardized recording across patients and facilities. *
5. Recommended impedance levels for EEG electrodes should
be:
A) Less than 20,000 ohms
B) Less than 5,000 ohms (5 kΩ)
C) At least 20,000 ohms
D) Less than 5 ohms
Answer: B
4
