BCIA Breathing & Capnometry Biofeedback

Question 1

What does end-tidal CO2 (EtCO2) measure in capnometry biofeedback?

Accepted Answer

Carbon dioxide concentration at the end of exhalation

Answer

Oxygen saturation at the end of inhalation

Answer

Nitrogen levels during normal respiration

Answer

Blood pressure changes during breathing

Question 2

What is the normal range for end-tidal CO2 (EtCO2) in healthy resting adults?

Accepted Answer

35–45 mmHg

Answer

15–25 mmHg

Answer

50–60 mmHg

Answer

60–75 mmHg

Question 3

What term describes chronically low CO2 levels caused by over-breathing?

Accepted Answer

Hypocapnia

Answer

Hypercapnia

Answer

Hyperoxia

Answer

Hypoxemia

Question 4

At approximately what breathing rate does resonance frequency breathing typically occur to maximize HRV?

Accepted Answer

6 breaths per minute

Answer

2–4 breaths per minute

Answer

12–15 breaths per minute

Answer

18–20 breaths per minute

Question 5

Which breathing pattern is emphasized in biofeedback training to maximize ventilation efficiency and reduce muscle tension?

Accepted Answer

Diaphragmatic breathing

Answer

Chest/thoracic breathing

Answer

Paradoxical breathing

Answer

Apneustic breathing

Question 6

What is the Bohr effect, as relevant to breathing biofeedback?

Accepted Answer

Increased oxygen release from hemoglobin as CO2 rises

Answer

Decreased heart rate during exhalation

Answer

Increased oxygen uptake during hyperventilation

Answer

Reduced respiratory rate during acute stress

Question 7

Which symptom is most commonly associated with acute hyperventilation syndrome?

Accepted Answer

Tingling in the extremities and lightheadedness

Answer

Hyperthermia and profuse sweating

Answer

Bradycardia and hypertension

Answer

Increased appetite and weight gain