20 results
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Aspiration, Flash Pulmonary ... Bronchospasm, Pulmonary ... Embolism, Pneumothorax ... ), Lung Exam, POCUS ... (B-lines, lung
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS of Respiratory ... Edema, Atelectasis ... , Pulmonary Embolism ... , Obstructive Lung ... #Hypoxia #hypoxemia
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
edema (most common ... direction leads to hypoxemia ... embolus SHUNT ... hepatopulmonary syndrome ... #Failure #hypoxia
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... • Interstitial lung ... Hypoventilation Syndrome ... #Diagnosis #Algorithm
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Response Management Algorithm ... pneumonia • Water: pulmonary ... edema • Air: ... atelectasis • Lung ... #rapid #pulmonary
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Etiology: • Acute respiratory ... distress syndrome ... embolism • Re-expansion ... pulmonary edema ... acute lung injury
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Differential Diagnosis Algorithm ... Superior vena cava syndrome ... edema • Atelectasis ... • Interstitial lung ... embolismPulmonary
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... Edema: - Widespread ... severity Acute Respiratory ... Distress Syndrome ... Embolism (PE):
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... , defecation) Respiratory ... : • Pulmonary ... EmbolismHypoxia ... • Sick Sinus Syndrome
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
• Diffuse Lung ... • Acute Respiratory ... Distress Syndrome ... • Chronic Lung ... Embolism