7 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Wall Elasticity (flail ... chest) • Low ... , Interstitial Lung ... UnremarkableLab #AA ... Hypoxia #hypoxemia #differential
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 ... #diagnosis #differential ... #pulmonary #causes
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
• ↑ Mechanical stress ... caused by a rigid chest ... Pulmonary Diseases ... edema in acute ... #diseases #differential
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
Heart Failure - Differential ... Diffuse Lung Disease ... • Acute Respiratory ... Distress Syndrome ... • Chronic Lung
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
pneumonectomy if fail ... Aeruginosa - Strep ... Abscess Differential ... #Abscess #pulmonary ... #differential #
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Edema - Differential ... cardiac disease ... respiratory distress ... syndrome (ARDS) ... lung injury (TRALI
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acute or chronic ... D-lactate (short bowel syndrome ... Classically” noted with pulmonary ... or restrictive lung ... disease (COPD,