4 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
AVMs, Hepatopulmonary ... Syndrome - ... : Atelectasis, ARDS ... , Interstitial Lung ... UnremarkableLab #AA
Hepatopulmonary Syndrome (HPS) 

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

HPS-diagnosis:
1. Patients
Hepatopulmonary ... Syndrome (HPS) ... Diseases of the lung ... Alveolar-arterial oxygen gradient ... HPS-severity classification
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Respiratory Distress Syndrome ... injury, leading ... to increased pulmonary ... consistent with pulmonary ... detected on CT or CXR
Hepatopulmonary Syndrome - Illness Script
HPS is a pulmonary disorder of chronic liver disease characterized by a
Hepatopulmonary ... time = increased Aa ... presence in the lower lung ... portal HTN • Aa ... gradient ≥15 mmHg