35 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... • Interstitial lung ... Defect ** • Atrial ... Abnormalities • Chest ... #Hypoxia #Differential
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Secondary to chronic lung ... disease (COPD) • Hypoxia ... • Pulmonary hypertension ... #Diagnosis #ECG
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
pneumonia • Water: pulmonary ... atelectasis • Lung ... #Hypoxia #differential ... #Diagnosis #Management ... Algorithm #rapid #pulmonary
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... Diagnosis Framework ... , atrial or ventricular ... #Differential # ... Diagnosis #pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Embolism, Obstructive Lung ... , Interstitial Lung ... #pulmonary #Hypoxia ... #hypoxemia #differential ... #diagnosis
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
narrowing the differential ... diagnosis. ... identified in the lung ... #Radiology #Pulmonary ... #CTChest #TreeInBud
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
Clinical Classification ... Pulmonary arterial ... and/or hypoxia ... Classification #Diagnosis ... #Differential #
This is a parasternal long axis view of a young patient presenting with 3 days of
x-ray and and ECG ... root, and left atrium ... Michael Macias, EM ... Northwestern University #Clinical ... #EM #Radiology
Pulmonary Embolism on POCUS Echocardiogram

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
's female with chest ... Triage EKG (no prior ... Differential/diagnosis ... Echocardiogram #A4c #clinical ... #cardiology #McConnells
Polo Mint Sign on Chest CT
 • Partial filling defect in a blood vessel surrounded by
Polo Mint Sign on Chest ... CT • Partial filling ... Mint #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical