Respiratory
What is a shunt ?
Blood flow that gets directed from poor ventilated alveolus to a well ventilated one through vasoconstriction
What is a dead space?
Poor perfusion and well ventilated alveolus
What is a silent unit ?
Poor ventilation and poor perfusion
What is ventilation?
Amount of air reaching the alveoli
What is perfusion?
Amount of blood reaching alveoli
Mechanical insufficiencies for resp system ?
Structural damage, Airway obstruction, Medications
Functional factors that affect gas exchange?
Cardiac compromise, pulmonary embolism, Tumor, Infection, COPD, compliance