30 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... • Interstitial lung ... diseasePulmonary ... Defect ** • Atrial ... Hypoventilation Syndrome
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 ... Tachycardia #MAT #Cardiology
Hepatopulmonary Syndrome (HPS) 

HPS-differential diagnosis:
1. Pulmonary vasculature
2. Diseases of the lung parenchyma
3. Pleura and diaphragm

HPS-diagnosis:
1. Patients
Hepatopulmonary Syndrome ... (HPS) HPS-differential ... Diseases of the ... lung parenchyma ... Alveolar-arterial
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
Heart Failure - Differential ... Diffuse Lung Disease ... Respiratory Distress Syndrome ... Arterial Hypertension ... #HeartFailure #Cardiology
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... , Interstitial Lung ... #hypoxemia #differential
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... lymphoproliferative disease ... lesions • 80% with lung ... Lesions #Brain #differential ... diagnosis #causes #radiology
Causes of Palpitations
 • ARRHYTHMiA 
 • SINUS ARRYTHMIA 
 • ATRIAL FIBRILLATION 
 • ATRIAL
ARRYTHMIA • ATRIAL ... PARKINSON WHITE SYNDROME ... PHAEOCHROMOCYTOMA • PULMONARY ... Palpitations #Causes #Differential ... #Diagnosis #Cardiology
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Rapid Response Management ... asthma • Pleural disease ... atelectasis • Lung ... Hypoventilation: • CNS ... Hypoxemia #Hypoxia #differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... obesity-hypoventilation syndrome ... diseases, pulmonary ... hepatopulmonary syndrome ... shunting (eg, atrial
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
In chronic disease ... - Lung neoplasms ... proteinaceous material ... #Diagnosis #Radiology ... #Pulmonary #CXR