7 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Right to Left Shunt ... Ventricular Septal Defect ... ** • Atrial Septal ... Defect Pulmonary ... Hypoventilation Syndrome
Hepatopulmonary Syndrome on Echocardiogram (A4C)
Hepatopulmonary Syndrome: Intrapulmonary shunting is most commonly demonstrated by contrast TTE when
Echocardiogram (A4C ... demonstrated by contrast ... TTE when bubbles ... visualized in the left atrium ... with intracardiac shunt
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Hepatopulmonary Syndrome ... or anatomic shunt ... blood gas (ABC) ... scanning or pulmonary ... hepatopulmonary #syndrome
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
obesity-hypoventilation syndrome ... defects) VENTILATION ... hepatopulmonary syndrome ... shunting (eg, atrial ... ventricular septal defects
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... Disease and more • Diffusion ... Defect: Pulmonary ... Gradient #alveolar #arterial
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
liver disease and pulmonary ... Early transit of bubbles ... hepatopulmonary syndrome ... as RAP>LAP as atrial ... clinical #pocus #a4c