15 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... - Differential Diagnosis ... Right to Left Shunt ... Defect ** • Atrial ... #Diagnosis #Algorithm
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... VIQ mismatch and shunt ... embolus SHUNT ... shunting (eg, atrial ... #Differential #Diagnosis
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... Right-to-Left Shunt ... #Diagnosis #Algorithm ... #pulmonary #Aa
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia ... - Differential Diagnosis ... Alkalosis • Shunt ... Hemorrhage • Impaired Diffusion ... #Diagnosis #causes
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Disease and more • Diffusion ... Gradient #alveolar #arterial ... #pulmonary #Hypoxia ... #hypoxemia #differential ... #diagnosis
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
1) or anatomic shunt ... upright position • Hypoxemia ... cycles after right atrial ... blood gas (ABC) ... scanning or pulmonary
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
- Differential Diagnosis ... Only: • Poor Perfusion ... Arteriosus • Atrial ... Total Anomalous Pulmonary ... #Differential #Diagnosis
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
consistent with pulmonary ... explained by pleural effusions ... by the ratio of arterial ... severity of the hypoxemia ... Definition #Criteria #Diagnosis
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Effect in Right Atrium ... - Differential Diagnosis ... 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
Double Shunt on ... liver disease and pulmonary ... Early transit of bubbles ... as RAP>LAP as atrial ... clinical #pocus #a4c