17 results
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic Dyspnea ... Pericardial • Effusion ... Thickening/Masses Chest ... Alveoli • Pneumonia ... • ARDS • COPD
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic chest ... : • Chest pain ... , pleural effusion ... Infections #HIV #AIDS ... #pulmonary #differential
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
COVID-19 Patterns ... ARDS 3. ... Organizing Pneumonia ... Patterns #Lung #Pulmonary ... ChestCT #radiology #CTChest
Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more
Fever+, Cough+, Dyspnea ... +, Pleuritic Chest ... Ground Glass +/- Effusions ... Consolidations AKA "inverse pulmonary ... #diagnosis #pulmonary
COVID-19 on Lung POCUS - Day 2

Day 2 after COVID diagnosis. Less sore throat, cough &
breath or pleuritic chest ... bilateral pleural effusion ... clinical #lung #ultrasound ... #pulmonary #BLines ... #POCUS #Effusion
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... e.g., CXR, CT, ultrasound ... procalcitonin) - Pulmonary ... symptoms (e.g., dyspnea ... #Pneumonia #Venn
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Associated Lung Ultrasound ... pleura reflection) Pneumonia ... Possible bilateral effusion ... Distress Syndrome (ARDS ... #Lung #POCUS #ultrasound
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
B-Lines in case of Pneumonia ... pt with fever/dyspnea ... /lung sliding: Pulmonary ... edema, ARDS, interstitial ... POCUS #clinical #ultrasound
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Chronic Causes of Dyspnea ... /Chest Wall: • ... flare, Pleural effusion ... , Pneumonia, Aspiration ... Tumor, Pleural effusion
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... : Atelectasis, ARDS ... , Pneumonia and ... Disease and more • Diffusion