30 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... neuromuscular disease ... , ↓ chest wall compliance ... #Diagnosis #Algorithm
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... - Differential Diagnosis ... • Parenchymal Disease ... Abnormalities • Chest ... #Diagnosis #Algorithm
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Features of Pulmonary Diseases ... Atelectasis - Emphysema ... Pneumothorax - Effusion ... Lung #CXR #XRay #ChestCT ... #Differential #Diagnosis
Posterior L chest scan…same patient. Explains all! Massive L effusion, empyema. Drained and later discharged from
Posterior L chest ... Massive L effusion ... , empyema. ... Wilkinsonjonny #Clinical ... #PleuralEffusion
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
- Differential Diagnosis ... Hemorrhage • Impaired Diffusion ... Pulmonary Embolism, Emphysema ... Shock • Airway Disease ... #Diagnosis #causes
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
• Pleural effusion ... Parapneumonic effusion ... ; empyema, M.tuberculosis ... #differential #diagnosis ... #chestCT #radiology
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Smoking related diseases ... (centrilobular emphysema ... Pulmonary edema #Diagnosis ... Pulmonary #HRCT #ChestCT ... #Upper #Lower #RadiologyAssistant
Empyema Necessitans (EN) on Chest Wall Physical Examination

Pulmonary teaching case: you are called to the bedside
Empyema Necessitans ... drain - What’s the diagnosis ... infected pleural effusion ... of the pleural effusion ... #PhysicalExam #clinical
Empyema Necessitans (EN) on Chest POCUS

Pulmonary teaching case: you are called to the bedside of a
Empyema Necessitans ... POCUS - What’s the diagnosis ... This is Empyema ... infected pleural effusion ... #clinical #video
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... and more • Diffusion ... #hypoxemia #differential ... #diagnosis