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RPSGT Exam Questions And Answers
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RPSGT Exam Questions And AnswersWhich 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
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 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
Destruction of the major endogenous circadian oscillator leads to: - Answer
Arrhythmicity
The technician observes muscle artifact in a single EEG channel that shares a common
reference with other channels. What is the appropriate response? - Answer
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: - Answer 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: - Answer 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? - Answer 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 helpful for? - Answer Reduce EKG artifact in EEG
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