5904 results
PROSEVA definition of ARDS
Thus, the PROSEVA trial essentially modifies the Berlin definition of ARDS, with the
that the PaO2/FiO2 ... that the PaO2/FiO2 ... #Diagnosis #CriticalCare
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
inspired oxygen (PaO2/FiO2 ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... Severe - PaO2 / FiO2 ... Definition #Criteria #Diagnosis
Low O2 saturation that does not respond to supplemental O2
- Key diagnostic feature (sat < 85%
supplemental O2 - Key diagnostic ... response to 100% FiO2 ... response to 100% FiO2 ... COPD, anemia) #Diagnosis
Markers of Organ Dysfunction in Severe Sepsis 
Altered consciousness 
Confusion 
Psychosis 

Tachycardia 
Hypotension 
Altered CVP 
Altered
SaO2 < 90% PaO2/FiO2 ... Protein C #Diagnosis ... #CriticalCare #Diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = [FiO2 ... chest) • Low PiO2 ... Elevation, Low Fio2 ... #differential #diagnosis
Understanding & Treating ARDS - Acute Respiratory Distress Syndrome

•  Timing - within one week of
Oxygenation PaO2/FiO2 ... Acute #Syndrome #Diagnosis
Hypotension in Anesthesiology - Differential Diagnosis and Management 

Initial checklist: 
 - Verify BP (e.g. surgeon
- Differential Diagnosis ... - Increase FiO2 ... #Differential #Diagnosis
The Berlin Definition of Acute Respiratory Distress Syndrome (ARDS)

Chest imaging - Bilateral opacities—not fully explained by
mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... Severe - PaO2 / FiO2 ... >= 5cm H2O #Diagnosis
Community Acquired Pneumonia - Severity and Prognosis
Criteria for Severe CAP - Severe CAP present in 1
breaths/min, PaO2 / FiO2 ... #severe #psi #diagnosis
Community Acquired Pneumonia - Presenting Features
 • History in favor of CAP: Dyspnea, Cough, particularly if
breaths/min, PaO2 / FiO2 ... Acquired #Pneumonia #diagnosis