17 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... neuromuscular disease ... , ↓ chest wall compliance ... Cardiac, Vascular, Alveolar ... #pulmonary #Aa
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Age-Adjusted Gradient • Alveolar ... UnremarkableLab #AA ... #Gradient #alveolar ... Hypoxia #hypoxemia #differential ... #diagnosis
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... left multiple diseases ... Cardiogenic pulmonary ... #CTChest #LymphangiticCarcinomatosis ... Carcinomatosis #Mimic #Differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
interstitial lung disease ... bronchiolitis #Diagnosis ... #Radiology #Pulmonary ... #CTChest #GGO # ... #GroundGlass #Differential
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Definition: Diffuse alveolar ... symptomatology Differential ... Diagnosis for Pulmonary ... high resolution chest ... #diagnosis #nephrology
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
with airspace disease ... the air in the alveoli ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Consolidation #Differential
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chronic Dyspnea - Differential ... Diagnosis Algorithm ... • Sub-Valvular Disease ... Thickening/Masses Chest ... Alveoli • Pneumonia
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
and Management Differential ... , Flash Pulmonary ... Pneumothorax, Alveolar ... edema), Lung Exam, POCUS ... STAT CXR, CTA Chest
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Blood: diffuse alveolar ... pneumonia • Water: pulmonary ... asthma • Pleural disease ... Hypoxemia #Hypoxia #differential ... #Diagnosis #Management
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
- Differential ... Diagnosis Algorithm ... histiocytosis (PLCH ... leaking out of pulmonary ... Amy Chung, MD, MSc