130 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Differential Diagnosis Algorithm ... Right-to-Left Shunt: Cardiac ... ↓Ventilation (↑Shunting ... ), ↓Perfusion (↑ ... Differential #Diagnosis #Algorithm
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
average settings • Causes ... gas equation • Causes ... • Most common cause ... Intrapulmonary shunting ... , intracardiac shunting
Cardiac Rupture with Pericardial Effusion

Apical 4 chamber. Note larger right sided pericardial effusion with significant compression
Cardiac Rupture ... with Pericardial Effusion ... sided pericardial effusion ... #pericardial #effusion ... ultrasound #Cardiology #A4c
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Differential Diagnosis Algorithm ... Pericardial • Effusion ... • Cardiac Tamponade ... Abnormalities • Pleural Effusions
Priority-based management algorithm for the undifferentiated patient in PEA arrest
PEA (no pulse by manual palp +
Priority-based management algorithm ... Cardiac POCUS 3 ... Start vasopressor infusion ... Alex Coutin # ... PEA #arrest #algorithm
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea ... Differential Diagnosis Algorithm ... Cardiac: • Dysrhythmia ... Pleura: • Pleural effusion ... #Causes
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Ventilation/perfusion ... Differential #Diagnosis #Algorithm ... #Causes #Pulmonary
Hemorrhagic Pericardial Effusions (Hemopericardium)- Differential Diagnosis Framework

IATROGENIC DISEASE
Secondary to invasive cardiac procedures

NONIATROGENIC
• Malignancy (e.g., metastatic spread:
Hemorrhagic Pericardial Effusions ... Secondary to invasive cardiac ... OTHER RARE CAUSES ... • PRIMARY Cardiac ... #Pericardial #Effusion
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... (micturition, coughing ... • Migraine Cardiac ... Stenosis • Cardiac ... #causes
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
motion (PVFM) Cardiac ... Causes of Tachypnea ... Pulmonary embolism • Cardiac ... • Pericardial effusion ... Hematologic Causes