Chaper 13 Respiratory failure Zhao Mingyao BMC.ZZU
Chaper 13 Zhao Mingyao BMC.ZZU
Respiration= ventilation t gas exchange Ventilation: alveoli enlarging to set up p gradient airway fluency to let gas flow gas exchange: area distance efficiency(v/Q) physiology view
Respiration = ventilation + gas exchange Ventilation: alveoli enlarging to set up P gradient airway fluency to let gas flow gas exchange: area distance efficiency (V/Q) ------ physiology view
Air Out nasal cavity aryan larynx trachea epiglottis bronchus right lung 人.了 diaphragm left lung neural
1. Concept of Repiratory Failure Respiratory system fails to adequately oxygenate the blood with/without retention of CO2, it is generally defined as a pao 60mmHg. with /without Paco2 >50mmHg
1.Concept of Repiratory Failure Respiratory system fails to adequately oxygenate the blood with/without retention of CO2 , it is generally defined as a PaO2 < 60mmHg, with /without PaCO2 >50mmHg
2. Classification of According to (duration Acute: minutes to days Chronic: over months to years (2)primary site Central: head injury, encephalitis Peripheral: asthma, pneumonia, emphysema
2.Classification of ~ (1)duration Acute : minutes to days Chronic: over months to years (2)primary site Central : head injury, encephalitis Peripheral: asthma, pneumonia, emphysema According to