BCIA Breathing & Capnometry Biofeedback 2

Question 1

In capnometry biofeedback, which metric serves as the primary real-time feedback signal?

Accepted Answer

End-tidal CO2 concentration

Answer

Heart rate variability amplitude

Answer

Skin conductance level

Answer

Electromyography amplitude

Question 2

What breathing dysfunction is most commonly addressed with capnometry biofeedback?

Accepted Answer

Chronic hyperventilation disorder

Answer

Obstructive sleep apnea

Answer

Bradypnea (abnormally slow breathing)

Answer

Cheyne-Stokes respiration

Question 3

Slow paced breathing at resonance frequency primarily improves which physiological parameter?

Accepted Answer

Heart rate variability (HRV)

Answer

Blood glucose regulation

Answer

Galvanic skin response amplitude

Answer

Core body temperature

Question 4

An EtCO2 reading below what threshold is generally considered indicative of hyperventilation?

Accepted Answer

35 mmHg

Answer

50 mmHg

Answer

45 mmHg

Answer

25 mmHg

Question 5

How does slow diaphragmatic breathing correct blood pH in a person who has been chronically hyperventilating?

Accepted Answer

It normalizes elevated pH caused by respiratory alkalosis

Answer

It decreases pH further into acidosis

Answer

It has no measurable effect on blood pH

Answer

It increases pH into greater alkalosis

Question 6

What type of sensor is used to measure end-tidal CO2 in a capnometry biofeedback session?

Accepted Answer

Infrared CO2 analyzer placed at the nose or mouth

Answer

Thermistor attached to the fingertip

Answer

Surface electrodes attached to the chest wall

Answer

Pulse oximeter clipped to the fingertip

Question 7

Respiratory sinus arrhythmia (RSA) is best described as:

Accepted Answer

The natural increase in heart rate during inhalation and decrease during exhalation

Answer

An abnormal cardiac arrhythmia triggered by airway obstruction

Answer

Irregular breathing patterns associated with cardiovascular disease

Answer

Synchronization of respiration with an external cardiac pacemaker