How is ARDS classified according to the Berlin Definition?
Answer
The Berlin Definition classifies ARDS into three categories based on the severity of hypoxemia, determined by the PF ratio (the ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen). Mild ARDS has a PF ratio greater than 200 but less than or equal to 300. Moderate ARDS is defined by a PF ratio of less than or equal to 200 but greater than or equal to 100. Severe ARDS is indicated by a PF ratio of less than or equal to 100. These classifications help in early identification and the implementation of appropriate treatment strategies to improve patient outcomes.
Tim Gilmore, PhD, RRT, RRT-ACCS, RRT-NPS, CPFT, AE-C
Dr. Gilmore is an Associate Professor of Cardiopulmonary Science (CPS) and the CPS Program Director at Louisiana State University Health Shreveport. He earned a PhD in Health Science from Nova Southeastern University, a Masters in Health Sciences and BS in Cardiopulmonary Science from LSU Health Shreveport, and an AS in Respiratory Therapy from Bossier Parish Community College (BPCC).
Dr. Gilmore’s research interests include ICU care, mechanical ventilation, asthma, and patient education. He is a member of the Louisiana Society for Respiratory Care, American Association for Respiratory Care, American Thoracic Society, and National Board for Respiratory Care. He is a Registered Respiratory Therapist with specialty credentials as a Neonatal Pediatric Specialist and Adult Critical Care Specialist, and he holds national certifications as a Pulmonary Functions Technologist and Asthma Educator. He also serves as a peer reviewer for the Respiratory Care Journal and an item writer for the NBRC.
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