8 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... • Interstitial ... lung disease ... Malformation • Severe Pneumonia ... #Hypoxia #Differential
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Lung Disease - ... Differential Diagnosis ... progressive dyspnea ... #Lung #Diseases ... #ILD #Causes #Differential
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
- Differential ... Diagnosis Algorithm ... Alveoli • Pneumonia ... Interstitium ... • ILD • CHF
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Disease, Interstitial ... , Interstitial Lung ... UnremarkableLab #AA ... #differential # ... diagnosis
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea ... Parenchyma: • Pneumonia ... • Cancer • Interstitial ... lung disease Vasculature ... Pleura: • Pleural effusion
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Disease by CD4 ... , pleural effusion ... fever, rales, interstitial ... Infections #HIV #AIDS #pulmonary
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
pt with fever/dyspnea ... Differential Bilat ... : Pulmonary edema ... lung disease, interstitial ... NOT definitively diagnose
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Diagnosis Framework ... oxygen • Causes: Interstitial ... lung diseases, ... • Causes: Pneumonia ... Diagnosis #pulmonary