11. 有關呼吸的調控(Control of breathing),下列敘述何者錯誤
(A) 中樞性睡眠呼吸中止Cheyne-Stokes respiration,是指呼吸wax and waning;由心臟衰竭引起的其cycle length較長,而腦部傷害引起的cycle length較短
(B) 突然坐飛機由海平面飛至西藏高原,2-3天內會有acclimatization的反應;Ventilation持續下降,arterial PCO2逐漸上升,且對CO2 sensitivity下降
(C) 中樞性睡眠呼吸中止,Cheyne-Stokes respiration是因為respiratory control system的instability,其機轉包括transport delays (increased circulation time such as occurs in heart failure)及loop gain上升
(D) 呼吸的調控(Control of breathing)主要由Peripheral Chemoreceptors,Central Chemoreceptors for PH, CO2及O2,和Pulmonary Mechanoreceptors來調控
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答案是 (B) 突然坐飛機由海平面飛至西...