Physiological Monitoring Flashcards
7 cards from real CPE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Physiological Monitoring flashcards as text
Which component of the pneumograph measures respiratory effort during a polygraph examination?
Answer: A convoluted rubber tube placed around the thorax or abdomen
The pneumograph uses a convoluted rubber tube that expands and contracts with breathing, recording thoracic and abdominal respiratory movement.
In polygraph physiology, 'baseline' respiration is best described as:
Answer: The normal, undisturbed breathing pattern recorded before relevant questions begin
Baseline respiration represents the subject's normal breathing pattern established during neutral or irrelevant questioning, used as a reference for comparison.
A sudden increase in electrodermal activity (EDA) most directly indicates:
Answer: Activation of eccrine sweat glands controlled by the sympathetic nervous system
EDA increases result from eccrine sweat gland secretion, which is controlled exclusively by the sympathetic nervous system and reflects arousal or stress.
What does a 'staircase' pattern in the cardio channel of a polygraph typically suggest?
Answer: Progressive rise in relative blood pressure over successive questions
A staircase pattern reflects a stepwise rise in relative blood pressure across question presentations, often associated with psychological arousal or deceptive responses.
During polygraph testing, 'apnea' in the pneumograph channel refers to:
Answer: A temporary cessation or suppression of breathing
Apnea is a pause or cessation of respiratory movement and is considered a significant deception indicator when it occurs at relevant questions.
Which of the following best describes the 'galvanic skin response' (GSR) as measured in polygraph exams?
Answer: Changes in skin electrical conductance caused by sweat gland activity
GSR (also called electrodermal response) measures changes in skin electrical conductance that occur when sweat glands are activated by sympathetic arousal.
The 'upper respiratory' pneumograph component is placed at which anatomical location?
Answer: Around the thoracic (chest) region
The upper (thoracic) pneumograph tube is placed around the chest to measure thoracic breathing effort, while a second tube monitors abdominal movement.