45 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... • Interstitial lung ... Arterial Hypertension ... Defect ** • Atrial ... #Causes #Pulmonary
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Secondary to chronic lung ... disease (COPD) • Hypoxia ... • Pulmonary hypertension ... #Multifocal #Atrial
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
obesity-hypoventilation syndrome ... direction leads to hypoxemia ... hepatopulmonary syndrome ... shunting (eg, atrial ... Respiratory #Failure #hypoxia
Diagnostic algorithm for a child or adolescent with suspected pulmonary hypertension. CHD, congenital heart disease; CPET,
Diagnostic algorithm ... arterial hypertension ... arterial hypertension ... ; CLD, chronic lung ... #Hypertension #Workup
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Causes of Pulmonary ... Pulmonary Arterial ... • Valvular Lung ... Disease and/or Hypoxemia ... #Causes
Causes of Palpitations
 • ARRHYTHMiA 
 • SINUS ARRYTHMIA 
 • ATRIAL FIBRILLATION 
 • ATRIAL
ARRYTHMIA • ATRIAL ... FIBRILLATION • ATRIAL ... PARKINSON WHITE SYNDROME ... TACHYCARDIA • ATRIAL ... DISEASE • HYPOXIA
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... , Interstitial Lung ... Gradient #alveolar #arterial ... #pulmonary #Hypoxia
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Hepatopulmonary Syndrome ... Summary A defect in arterial ... disease Caused ... cycles after right atrial ... passage • Arterial
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
Differential Diagnosis Algorithm ... • Diffuse Lung ... Respiratory Distress Syndrome ... • Chronic Lung ... Arterial Hypertension
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
Pulmonary arterial ... arterial hypertension ... and/or hypoxia ... Interstitial lung ... #Differential #Causes