6 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Right to Left Shunt ... Ventricular Septal Defect ... ** • Atrial Septal ... Defect Pulmonary
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
or anatomic shunt ... upright position • Hypoxemia ... cycles after right atrial ... blood gas (ABC) ... scanning or pulmonary
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
defects) VENTILATION ... direction leads to hypoxemia ... shunting (eg, atrial ... ventricular septal defects ... Respiratory #Failure #hypoxia
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Disease and more • Diffusion ... Defect: Pulmonary ... Gradient #alveolar #arterial ... #pulmonary #Hypoxia ... #hypoxemia #differential
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Negative Contrast ... Atrium - Differential ... left to right shunt ... echocardiogram #s4c ... #pocus #bubble
Double Shunt on Echocardiogram
What do you see on this saline contrast study, in a patient with
on this saline contrast ... liver disease and pulmonary ... Early transit of bubbles ... as RAP>LAP as atrial ... clinical #pocus #a4c