Question 1
What stimulus causes posthyperventilation apnea (PHVA)?
◦ Changes in PaO
2 levels
◦ Changes in PaCO
2 levels
◦ Damage to the forebrain
◦ Any arrhythmic breathing pattern
Question 2
A healthcare professional reads in the patient’s chart and notes the patient has Cheyne-Stokes respirations. What clinical finding would the professional correlate with this condition?
◦ Sustained deep rapid but regular pattern of breathing
◦ Crescendo-decrescendo pattern of breathing, followed by a period of apnea
◦ Prolonged pause after the inspiratory period with occasional end-expiratory pause
◦ Completely random, irregular breathing pattern with pauses