RPSGT Exam (Answered) 61 Questions and
Correct Answers, 100% Correct. Latest
2024/2025.
Which waveform occurs at it's maximum amplitude in the central region of the brain?
Spindles and K complexes
Circadian rhythm control falls primarily under the control of what?
Suprachiasmatic Nucleus (SCN)
On a 24-hour cycle, the level of alertness is closely linked to what?
Body temperature
In what area of the brain do most seizures occur?
Temporal
What structure is primarily involved in the control of wakefulness or alertness?
Reticular activating system (RAS)
What is the "gateway" structure between the body and the cerebral cortex?
Thalamus
Which neurochemical increases in REM sleep as well as wake?
Ach
Sleep spindles result from the blocking of information between the____________ and the cortex
and result from deactivation of the _________.
thalamus, RAS
Bright light therapy affects which anatomic structure?
SCN
A tonic-clonic seizure represents the mass firing or synchronization of large groups of neurons.
Which sleep stage would you LEAST expect to see seizure activity?
REM
Pontogeniculate (PGO) waves are an indicator of which sleep stage?
REM
The EEG observed in wake and REM are both characterized by what?
Asynchronous EEG, low voltage, and mixed frequency
, What general term is used to describe cues which synchronize our internal clock to the external
environment?
Zeitgebers
Which come under the influence of circadian rhythm control?
Body temperature, hormone levels, and K+ levels
Destruction of the major endogenous circadian oscillator leads to:
Arrhythmicity
The technician observes muscle artifact in a single EEG channel that shares a common reference
with other channels. What is the appropriate response?
Re-reference the channel showing artifact by changing the input signal derivation to a back-up
exploring electrode
The preferred method of correcting undesirable artifacts during the recording process is to:
Change the input signal derivations
If 60Hz artifact is observed in one of the channels during the bio-calibration process, the appropriate
action should be:
Find the problem source and correct it before beginning the study
What factors come into play when deciding to enter the patient's room to correct artifacts?
Importance of electrode channel in scoring, ease at which patient falls asleep, and skill at fixing
problem without waking patient
Double-referencing (A1+A2) may be useful for?
Reduce EKG artifact in EEG and EOG channels
The chief way of excluding undesirable interfacing signals in polysomnograph is accomplished by:
Passing input signal through differential amplifiers
Which conditions are most likely to cause electrode-popping artifact?
Pressure against the electrode and poor ground connection
Which type of artifact presents as a high frequency artifact?
Muscle
If the size of the prepared electrode site is too large, what can occur?
Signal contamination or bridging
What is not considered a physiologic artifact?
Popping
Which types of artifacts are physiological?
Muscle, respiratory, and cardio ballistic
Correct Answers, 100% Correct. Latest
2024/2025.
Which waveform occurs at it's maximum amplitude in the central region of the brain?
Spindles and K complexes
Circadian rhythm control falls primarily under the control of what?
Suprachiasmatic Nucleus (SCN)
On a 24-hour cycle, the level of alertness is closely linked to what?
Body temperature
In what area of the brain do most seizures occur?
Temporal
What structure is primarily involved in the control of wakefulness or alertness?
Reticular activating system (RAS)
What is the "gateway" structure between the body and the cerebral cortex?
Thalamus
Which neurochemical increases in REM sleep as well as wake?
Ach
Sleep spindles result from the blocking of information between the____________ and the cortex
and result from deactivation of the _________.
thalamus, RAS
Bright light therapy affects which anatomic structure?
SCN
A tonic-clonic seizure represents the mass firing or synchronization of large groups of neurons.
Which sleep stage would you LEAST expect to see seizure activity?
REM
Pontogeniculate (PGO) waves are an indicator of which sleep stage?
REM
The EEG observed in wake and REM are both characterized by what?
Asynchronous EEG, low voltage, and mixed frequency
, What general term is used to describe cues which synchronize our internal clock to the external
environment?
Zeitgebers
Which come under the influence of circadian rhythm control?
Body temperature, hormone levels, and K+ levels
Destruction of the major endogenous circadian oscillator leads to:
Arrhythmicity
The technician observes muscle artifact in a single EEG channel that shares a common reference
with other channels. What is the appropriate response?
Re-reference the channel showing artifact by changing the input signal derivation to a back-up
exploring electrode
The preferred method of correcting undesirable artifacts during the recording process is to:
Change the input signal derivations
If 60Hz artifact is observed in one of the channels during the bio-calibration process, the appropriate
action should be:
Find the problem source and correct it before beginning the study
What factors come into play when deciding to enter the patient's room to correct artifacts?
Importance of electrode channel in scoring, ease at which patient falls asleep, and skill at fixing
problem without waking patient
Double-referencing (A1+A2) may be useful for?
Reduce EKG artifact in EEG and EOG channels
The chief way of excluding undesirable interfacing signals in polysomnograph is accomplished by:
Passing input signal through differential amplifiers
Which conditions are most likely to cause electrode-popping artifact?
Pressure against the electrode and poor ground connection
Which type of artifact presents as a high frequency artifact?
Muscle
If the size of the prepared electrode site is too large, what can occur?
Signal contamination or bridging
What is not considered a physiologic artifact?
Popping
Which types of artifacts are physiological?
Muscle, respiratory, and cardio ballistic
