6 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... Algorithm Ventilation ... • Interstitial lung ... Hypoventilation Syndrome ... Abnormalities • Chest
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS of Respiratory ... , Interstitial Lung ... UnremarkableLab #AA ... Gradient #alveolar #arterial ... #differential #diagnosis
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
be present on a chest ... explained by pleural effusions ... lobar collapse, lung ... by the ratio of arterial ... #Criteria #Diagnosis
Esophageal Rupture with Gastric Contents seen on Lung Ultrasound
Middle aged patient with oesophageal Ca presents generally
Contents seen on Lung ... echogenic mobile material ... Diagnosis made at ... #Lung #Ultrasound ... #POCUS #clinical
The Berlin Definition of Acute Respiratory Distress Syndrome (ARDS)

Chest imaging - Bilateral opacities—not fully explained by
The Berlin Definition ... (ARDS) Chest ... fully explained by effusions ... , lobar/lung collapse ... >= 5cm H2O #Diagnosis
Abdominal Compartment Syndrome & Intrabdominal Pressure Measurement
APP (Abdominal Perfusion Pressure) = MAP (Mean Arterial Pressure) -
APP (Abdominal Perfusion ... Pressure) = MAP (Mean Arterial ... CO) and impedes lung ... POCUS) and function ... #Instructions #diagnosis