CPSGT Exam UPDATED ACTUAL
Questions and CORRECT Answers
Differential amplifier - CORRECT ANSWER works by comparing the difference between
two incoming voltages (one with environmental electrical noise and one without), outputs the
signal based on the difference.
Sampling rate for EEG, EOG, EMG, ECG - CORRECT ANSWER 200-500Hz
Sampling rate for therm, PTAF, EtCO2 - CORRECT ANSWER 25-100Hz
Sampling rate for Pulse Ox and TcCO2 - CORRECT ANSWER 10-25Hz
EEG and EOG Filters - CORRECT ANSWER LFF: 0.3 Hz, HFF: 35 Hz
EMG and Snoring Filters - CORRECT ANSWER LFF: 10 Hz, HFF: 100 Hz
ECG Filters - CORRECT ANSWER LFF: 0.3 Hz, HFF: 70 Hz
Therm and Belts Filters - CORRECT ANSWER LFF: 0.1 Hz, HFF: 15Hz
List of Parasomnias - CORRECT ANSWER circadian rhythm disorder, delayed sleep
phase, REM-behavior disorder, hypnogogic paralysis, night terrors, restless leg syndrome
DC - CORRECT ANSWER Direct Current: constant
AC - CORRECT ANSWER Alternating Current: has pauses (energy saving)
, Home Sleep Apnea Test Exclusions - CORRECT ANSWER Under 18, neuromuscular
disease, CHF, cognitive issues, disorders other than OSA
Low Frequency Filters - CORRECT ANSWER "High Pass," allows high freq signals to
pass uninhibited
High Frequency Filters - CORRECT ANSWER "Low Pass," allows low freq signal to pass
uninhibited
Ohm's Law - CORRECT ANSWER I=V/R (current = voltage/resistance)
EOG potentials - CORRECT ANSWER retina: back of eye, negative charge, upward
deflection
Cornea: front of eye, positive charge, downward deflection
"where is the electrode?"
Premature Ventricular Contraction (PVC) - CORRECT ANSWER ventricle contracts too
early, tries to inspire own heartbeat
Ventricular Tachycardia (VTACH) - CORRECT ANSWER regular, fast heartbeat
sinus rhythm
Ventricular Fibrillation (V-fib) - CORRECT ANSWER Abnormal heart rhythm which
results in quivering of ventricles
Coding situation
Tachycardia - CORRECT ANSWER HR > 100 bpm
Bradycardia - CORRECT ANSWER HR < 60 bpm
Questions and CORRECT Answers
Differential amplifier - CORRECT ANSWER works by comparing the difference between
two incoming voltages (one with environmental electrical noise and one without), outputs the
signal based on the difference.
Sampling rate for EEG, EOG, EMG, ECG - CORRECT ANSWER 200-500Hz
Sampling rate for therm, PTAF, EtCO2 - CORRECT ANSWER 25-100Hz
Sampling rate for Pulse Ox and TcCO2 - CORRECT ANSWER 10-25Hz
EEG and EOG Filters - CORRECT ANSWER LFF: 0.3 Hz, HFF: 35 Hz
EMG and Snoring Filters - CORRECT ANSWER LFF: 10 Hz, HFF: 100 Hz
ECG Filters - CORRECT ANSWER LFF: 0.3 Hz, HFF: 70 Hz
Therm and Belts Filters - CORRECT ANSWER LFF: 0.1 Hz, HFF: 15Hz
List of Parasomnias - CORRECT ANSWER circadian rhythm disorder, delayed sleep
phase, REM-behavior disorder, hypnogogic paralysis, night terrors, restless leg syndrome
DC - CORRECT ANSWER Direct Current: constant
AC - CORRECT ANSWER Alternating Current: has pauses (energy saving)
, Home Sleep Apnea Test Exclusions - CORRECT ANSWER Under 18, neuromuscular
disease, CHF, cognitive issues, disorders other than OSA
Low Frequency Filters - CORRECT ANSWER "High Pass," allows high freq signals to
pass uninhibited
High Frequency Filters - CORRECT ANSWER "Low Pass," allows low freq signal to pass
uninhibited
Ohm's Law - CORRECT ANSWER I=V/R (current = voltage/resistance)
EOG potentials - CORRECT ANSWER retina: back of eye, negative charge, upward
deflection
Cornea: front of eye, positive charge, downward deflection
"where is the electrode?"
Premature Ventricular Contraction (PVC) - CORRECT ANSWER ventricle contracts too
early, tries to inspire own heartbeat
Ventricular Tachycardia (VTACH) - CORRECT ANSWER regular, fast heartbeat
sinus rhythm
Ventricular Fibrillation (V-fib) - CORRECT ANSWER Abnormal heart rhythm which
results in quivering of ventricles
Coding situation
Tachycardia - CORRECT ANSWER HR > 100 bpm
Bradycardia - CORRECT ANSWER HR < 60 bpm
