14 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... • Interstitial lung ... Hypoventilation Syndrome ... Abnormalities • Chest ... #Hypoxia #Differential
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Response Management Algorithm ... atelectasis • Lung ... MG, ALS) • ↓ chest ... #Hypoxia #differential ... #rapid #pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... , Interstitial Lung ... #Hypoxia #hypoxemia ... #differential #
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
Heart Failure - Differential ... Diagnosis Algorithm ... Acute Respiratory Distress ... Syndrome ... #Differential #
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... Respiratory: • Pulmonary ... Embolism • Hypoxia ... #Differential #
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Edema - Differential ... Framework NCPE Pathophysiology ... syndrome (ARDS) ... Transfusion-related acute lung ... #diagnosis #cardiology
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
• ↑ Mechanical stress ... caused by a rigid chest ... Increased mechanical stress ... #diseases #differential ... #STARCHASERS #radiology
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Syndrome (ARDS) ... be present on a chest ... lobar collapse, lung ... severity of the hypoxemia ... #Syndrome #Berlin
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... Loss of weight • Chest ... in the adjacent lung ... of the affected lung ... #differential #
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Abscess Pathophysiology ... Aeruginosa - Strep ... Abscess Differential ... #Abscess #pulmonary ... #differential #