27 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... neuromuscular disease, ↓ chest ... #Hypoxia #Differential ... #pulmonary #Aa
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
and Management Differential ... , Flash Pulmonary ... Exam, POCUS (B-lines ... Troponin), ABG, STAT CXR ... , CTA Chest, Echocardiogram
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... • Interstitial lung ... Abnormalities • Chest ... #Hypoxia #Differential ... #Diagnosis #Algorithm
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... UnremarkableLab #AA ... #differential # ... diagnosis
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
atelectasis • Lung ... MG, ALS) • ↓ chest ... compliance (e.g., flail chest ... #Hypoxia #differential ... #Diagnosis #Management
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
evidence of a chest ... infiltrate (e.g., CXR ... production, pleuritic chest ... pain) and signs ... (tachypnea, hypoxemia
Hemothorax on Lung POCUS with Spine Sign

GSW to left chest.  Perisplenic window focusing on lower
POCUS with Spine ... left chest. ... focusing on lower chest ... Diagnosis? ... ultrasound #Pulmonary
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... On a Chest X-Ray ... detected on a chest ... #Pulmonary #CXR
Pulmonary Embolism on POCUS Echocardiogram

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
Pulmonary Embolism ... 's female with chest ... Differential/diagnosis ... RV, McConnell's sign ... cardiology #McConnells #sign
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern - Chest ... throughout the lungs ... Miliary #Pattern #Chest ... #diagnosis #pulmonary ... #CXR #clinical