age 1 of 57
RPSGT (Registered Polysomnographic Technologist)
FINAL EXAM STUDY GUIDE 2025/2026 ACCURATE
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES || 100% GUARANTEED PASS <BRAND
NEW VERSION>
How is an epoch with a major body movement scored?
......ANSWER........If alpha rhythm is present for any part of the
epoch, score as W. If there is no alpha, but an epoch before or
after is scored as W, then score as W. Otherwise, score the
epoch as the same stage as the epoch that follows it.
The PSG for a patient with obesity hypoventilation syndrome
(OHS) would commonly show: ......ANSWER........Increased
,age 2 of 57
baseline respiratory rates and profound O2 desaturations with
REM
A bio-calibration routine is used for: ......ANSWER........Confirming
that all the wires/electrodes are working properly, verify
correct signals, establish a baseline reference for all channels
Which waveform occurs at it's maximum amplitude in the central
region of the brain? ......ANSWER........Spindles and K complexes
Circadian rhythm control falls primarily under the control of
what? ......ANSWER........Suprachiasmatic Nucleus (SCN)
On a 24-hour cycle, the level of alertness is closely linked to
what? ......ANSWER........Body temperature
In what area of the brain do most seizures occur?
......ANSWER........Temporal
,age 3 of 57
What structure is primarily involved in the control of wakefulness
or alertness? ......ANSWER........Reticular activating system (RAS)
What is the "gateway" structure between the body and the
cerebral cortex? ......ANSWER........Thalamus
Which neurochemical increases in REM sleep as well as wake?
......ANSWER........Ach
Sleep spindles result from the blocking of information between
the____________ and the cortex and result from deactivation
of the _________. ......ANSWER........thalamus, RAS
Bright light therapy affects which anatomic structure?
......ANSWER........SCN
A tonic-clonic seizure represents the mass firing or
synchronization of large groups of neurons. Which sleep stage
, age 4 of 57
would you LEAST expect to see seizure activity?
......ANSWER........REM
Pontogeniculate (PGO) waves are an indicator of which sleep
stage? ......ANSWER........REM
The EEG observed in wake and REM are both characterized by
what? ......ANSWER........Asynchronous EEG, low voltage, and
mixed frequency
What general term is used to describe cues which synchronize
our internal clock to the external environment?
......ANSWER........Zeitgebers
Which come under the influence of circadian rhythm control?
......ANSWER........Body temperature, hormone levels, and K+
levels
RPSGT (Registered Polysomnographic Technologist)
FINAL EXAM STUDY GUIDE 2025/2026 ACCURATE
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES || 100% GUARANTEED PASS <BRAND
NEW VERSION>
How is an epoch with a major body movement scored?
......ANSWER........If alpha rhythm is present for any part of the
epoch, score as W. If there is no alpha, but an epoch before or
after is scored as W, then score as W. Otherwise, score the
epoch as the same stage as the epoch that follows it.
The PSG for a patient with obesity hypoventilation syndrome
(OHS) would commonly show: ......ANSWER........Increased
,age 2 of 57
baseline respiratory rates and profound O2 desaturations with
REM
A bio-calibration routine is used for: ......ANSWER........Confirming
that all the wires/electrodes are working properly, verify
correct signals, establish a baseline reference for all channels
Which waveform occurs at it's maximum amplitude in the central
region of the brain? ......ANSWER........Spindles and K complexes
Circadian rhythm control falls primarily under the control of
what? ......ANSWER........Suprachiasmatic Nucleus (SCN)
On a 24-hour cycle, the level of alertness is closely linked to
what? ......ANSWER........Body temperature
In what area of the brain do most seizures occur?
......ANSWER........Temporal
,age 3 of 57
What structure is primarily involved in the control of wakefulness
or alertness? ......ANSWER........Reticular activating system (RAS)
What is the "gateway" structure between the body and the
cerebral cortex? ......ANSWER........Thalamus
Which neurochemical increases in REM sleep as well as wake?
......ANSWER........Ach
Sleep spindles result from the blocking of information between
the____________ and the cortex and result from deactivation
of the _________. ......ANSWER........thalamus, RAS
Bright light therapy affects which anatomic structure?
......ANSWER........SCN
A tonic-clonic seizure represents the mass firing or
synchronization of large groups of neurons. Which sleep stage
, age 4 of 57
would you LEAST expect to see seizure activity?
......ANSWER........REM
Pontogeniculate (PGO) waves are an indicator of which sleep
stage? ......ANSWER........REM
The EEG observed in wake and REM are both characterized by
what? ......ANSWER........Asynchronous EEG, low voltage, and
mixed frequency
What general term is used to describe cues which synchronize
our internal clock to the external environment?
......ANSWER........Zeitgebers
Which come under the influence of circadian rhythm control?
......ANSWER........Body temperature, hormone levels, and K+
levels
