24 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... • Interstitial lung ... Arterial Hypertension ... Hypoventilation Syndrome ... Abnormalities • Chest
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Wall Elasticity (flail ... chest) • Low ... , Interstitial Lung ... Gradient #alveolar #arterial ... #hypoxemia #differential
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
Heart Failure - Differential ... Disease • Acute ... Respiratory Distress ... Syndrome ... Arterial Hypertension
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Berlin Criteria for Acute ... Syndrome (ARDS) ... be present on a chest ... lobar collapse, lung ... by the ratio of arterial
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... myelodysplastic syndrome ... #Lung #Infections ... ComputedTomography #Differential ... #Diagnosis #Chest
Chest Trauma Complications - Differential Diagnosis Algorithm
Cardiac:
 • Cardiac Tamponade*
 • Pericarditis
 • Myocardial Contusion
 •
- Differential ... Contusion • Acute ... Fractures • Flail ... Esophageal Injury Lung ... : • Pulmonary
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
pneumonia (DIP), Acute ... Churg Strauss syndrome ... Eosinophilic pneumonia: Acute ... ILD #diagnosis #differential ... #pulmonary #causes
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... the severity Acute ... Respiratory Distress ... Syndrome (ARDS) ... #differential #
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome ... ARDS: Clinical Cheat ... leading to increased pulmonary ... consistent with pulmonary ... RespiratoryDistress #Syndrome
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chronic Dyspnea - Differential ... Stable Angina • Acute ... Coronary Syndrome ... Arrhythmia • Atrial ... Thickening/Masses Chest