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What is ARDS? (Milder form is acute lung injury) [ Ans: ]
Inflammatory triggers initiate the release of cellular and
chemical mediators causing injury to the alveolar capillary
membrane in addition to other structural damage to the
lungs. Sever ventilation-perfusion mismatch occurs.
Aveoli collapse bc of the inflammatory infiltrate, blood
fluid, and surfactant dysfunction.
what causes ARDS? [ Ans: ] Direct injury- pulmonary
contusion, pneumonia, near-drowning, aspiration, smoke
inhalation.
Indirect- outside the lung, #1SEPSIS, BURNS.
what diagnostic test is used to confirm ARDS? [ Ans: ]
Chest xray-bilateral infiltrates on it.
ARDS is characterized by [ Ans: ] sudden and progressive
pulmonary edema, increasing bilateral infiltrates on chest
x-ray, hypoxemia, reduced lung compliance (rigid, stiff
lungs).
Management for ARDS [ Ans: ] usually require ET and
mechanical ventilation with a low tidal volume and higher
than normal airway pressure (PEEP)*.
- ABGs used to keep setting off FiO2 greater than
60mmHg/ O2 >90%. IV therapy to reduce hypotension.