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Respiratory Failure_

Gateway

QuestionAnswer
Respiratory Failure Inability to maintain either the normal delivery of oxygen to the tissues or normal removal o f CO2
Respiratory Failure ABG PaO2 < 60 and CO2 > 50
Type 1 Hypoxemic - Inadequate O2 delivery
Type 2 Ventilatory failure : Hypercapnia : Inability to remove CO2 : Can be acute on chronic
Cause Type 1 V/Q mismatch : Shunt : Alveolar hypoventilation : Perfusion/Diffusion impairment
Cause Type 1 Decreased inspired O2 : Venous admixture
V/Q Mismatch Ventilation and perfusion not evenly matched
Shunt Extreme version of V/Q mismatch in which there is no ventilation to match perfusion
Anatomical Shunt 2% - 3% blood supply through bronchial and thebesian veins
Causes of Shunt Atelectasis : Pulmonary Edema : Pneumonia
Created by: Sydeffectz