8 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Diagnosis Algorithm ... ** • Atrial Septal ... Defect Pulmonary ... #Diagnosis #Algorithm
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Diagnosis Algorithm ... Right-to-Left Shunt ... Cardiac, Vascular, Alveolar ... #Diagnosis #Algorithm ... #pulmonary #Aa
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
Diagnosis Algorithm ... Only: • Poor Perfusion ... Arteriosus • Atrial ... Total Anomalous Pulmonary ... #Diagnosis #Algorithm
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... Diagnosis Framework ... shunting (eg, atrial ... Failure #hypoxia #Differential ... #Diagnosis #pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Defect: Pulmonary ... #AA #Gradient #alveolar ... Hypoxia #hypoxemia #differential ... #diagnosis
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Diagnosis Algorithm ... Pericardial • Effusion ... Arrhythmia • Atrial ... Alveoli • Pneumonia ... #Diagnosis #Algorithm
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
or anatomic shunt ... cycles after right atrial ... Arterial blood gas (ABC ... cirrhosis • Intra-pulmonary ... scanning or pulmonary
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
in Right Atrium ... Diagnosis 1. ... left to right shunt ... echocardiogram #s4c ... #pocus #bubble