262 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
/0.8)] - PaO2 Simplified ... Weakness, Loss of Chest ... Elasticity (flail chest ... Embolism, Obstructive Lung ... , Interstitial Lung
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders ... Differential Diagnosis Algorithm ... Respiratory Acidosis (pCO2 ... Differential #Diagnosis #Algorithm ... #Causes #Compensation
Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Annotated on Chest ... CT Right Lung: ... radiopaedia.org/cases ... lobes #Segments #Chest ... #CT #CTChest #pulmonary
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Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... or restrictive lung ... bloodgas #Acid #Base
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Differential Diagnosis Algorithm ... Dyspnea (underlying lung ... lymadenopathy, clubbing, chest ... History of cancer, lung ... #causes
Main causes of diffuse parenchymal lung diseases.

#differential #algorithm #diagnosis #causes #DPLD #ILD #parenchymal #lung #diseases #pulmonary
Main causes of diffuse ... parenchymal lung ... #differential #algorithm ... #diagnosis #causes ... #parenchymal #lung
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Differential Diagnosis Algorithm ... , worse at the bases ... Diseases #ILD #Causes ... Differential #Diagnosis #Algorithm
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
HYPOVENTILATION • Rising PaCO2 ... gas equation • Causes ... : Interstitial lung ... ventilation (V) in the lungs ... bypassing the lungs
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the upper lung ... supplying the lung ... bases. ... the apex and the lung ... bases will be less
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
be present on a chest ... lobar collapse, lung ... inspired oxygen (PaO2 ... - 200 mm Hg < PaO2 ... - 100 mm Hg < PaO2