Acute Respiratory Distress Syndrome (ARDS) | ABIM Review

This is a snippet from Dr. Raj Dasgupta’s Pulmonary Medicine lecture in MedStudy’s 2023-2024 Internal Medicine Video Board Review. medstudy.com/products/interna...
ACUTE RESPIRATORY DISTRESS
SYNDROME (ARDS)
• Classic definition (American-European Consensus
Conference’s definition 1994)

- Ratio of PaO2/FiO2 less than 200
- Acute bilateral pulmonary infiltrates
- PCWP normal to low
• Measured by pulmonary artery catheter or no
clinical evidence of left-heart failure
Berlin Definition of ARDS 2012
• The Berlin Definition of ARDS requires that all of the
following criteria be present to diagnose ARDS:
- Symptoms must have begun within 1 week of a
known clinical insult
- Bilateral opacities consistent with pulmonary
edema must be present on CXR or CT
- Respiratory failure must not be explained by cardiac
failure or fluid overload
• The severity of the hypoxemia defines the severity
of the ARDS
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