5 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
AVMs, Hepatopulmonary ... , Interstitial Lung ... UnremarkableLab #AA ... #arterial #pulmonary ... #Hypoxia #hypoxemia
Hepatopulmonary Syndrome (HPS) 

HPS-differential diagnosis:
1. Pulmonary vasculature
2. Diseases of the lung parenchyma
3. Pleura and diaphragm

HPS-diagnosis:
1. Patients
Hepatopulmonary ... Diseases of the lung ... Alveolar-arterial ... oxygen gradient ... HPS-severity classification
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Hepatopulmonary ... Summary A defect in arterial ... absence of intrinsic lung ... on radioactive lung ... 80mmHg or A-a gradient
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... in the adjacent lung ... of the affected lung ... CT) • Broncho-arterial ... Sputum cultures growing
Hepatopulmonary Syndrome - Illness Script
HPS is a pulmonary disorder of chronic liver disease characterized by a
Hepatopulmonary ... leads to impaired arterial ... time = increased Aa ... presence in the lower lung ... portal HTN • Aa