6 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... • Interstitial lung ... Hypoventilation Syndrome ... Abnormalities • Chest ... #Algorithm #Causes
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS of Respiratory ... Weakness, Loss of Chest ... , Interstitial Lung ... UnremarkableLab #AA ... #differential #diagnosis
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura in severe cases ... severity Acute Respiratory ... Distress Syndrome ... #differential #diagnosis ... #signs #Lung #POCUS
Empyema Necessitans (EN) on Chest POCUS

Pulmonary teaching case: you are called to the bedside of a
teaching case: ... - What’s the diagnosis ... infected pleural effusion ... #pulmonary #respiratory ... #Chest #Lung
Esophageal Rupture with Gastric Contents seen on Lung Ultrasound
Middle aged patient with oesophageal Ca presents generally
Contents seen on Lung ... This case again ... Diagnosis made at ... #Lung #Ultrasound ... #POCUS #clinical
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
exudative pleural effusions ... toxicity (e.g., acute respiratory ... distress syndrome ... Pleuritic chest ... Exclude other causes