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C39 GAS XCHG

GAS XCHG DISORDERS

QuestionAnswer
RESP FAILURE IS DEFINED BY WHAT DIAGNOSTIC VALUES / TEST ............................p1353 ABG'S = PaO2 < 50 - 60 & PaCO2 > 50 = indicators of resp failure
how is resp failure indicated in COPD CTs ...p1353 acute drop in blood O2 levels & increased Co2 levels
causes of resp failure are hypoventilation, impaired gas xchg, significant ventilation-perfusion mismatch
types of dysfunction that cause impaired ventilation are .......................p1354 airway obstruction, resp disease, neurological causes & chest wall injury
types of dysfunction that cause impaired diffusion are .........................p1354 alveolar disorders & pulmonary edema
examples of airway obstruction are ......p1354 laryngospasm, foreign body aspiration & airway edema
examples of resp diseases are: asthma & COPD
examples of neurological causes of impaired ventilation are: spinal cord injury, poliiomyelitis, gullain-barre, OD, stroke
chest wall injuries that impair ventilation are flail chest , pneumothorax
alveolar disorders that impair diffusion are: pneumonia, pneumonitis, COPD
impaired diffusion r/t pulmonary edema is seen in: heart failure, ARDS, near drowning
ventilation perfusion mismatch is seen in what condition ...............................p1354 pulmonary embolism
examples of gas xchg disorders are: ARDS, asthma, atelectasis, bronchiectasis, chronic bronchitis, COPD, cor pulmonale, cystic fibrosis, emphysema, pulmonary embolism, pulmonary HTN, resp failure, sarcoidosis, status asthmaticus
Created by: migibson44
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