27 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... (Asthma, COPD) ... • Interstitial lung ... diseasePulmonary ... Defect ** • Atrial
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
asthma • Pleural disease ... atelectasis • Lung ... 12 / shallow breathing ... Hypoventilation: • CNS ... #Diagnosis #Management
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Secondary to chronic lung ... disease (COPD) ... • HypoxiaPulmonary ... • Oxygen • Treatment ... MAT #Cardiology #Diagnosis
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Causes of Pulmonary ... Algorithm Pulmonary ... Arterial Hypertension ... Hypoxemia: • COPD ... Breathing Miscellaneous
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Embolism, Obstructive Lung ... , Interstitial Lung ... #pulmonary #Hypoxia ... #diagnosis
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... diseases, pulmonary ... Pneumonia, asthma, COPD ... shunting (eg, atrial ... #Differential #Diagnosis
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
Pulmonary arterial ... due to lung disease ... and/or hypoxia ... lung disease Other ... Classification #Diagnosis
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
consider infarction, hypoxia ... In lung disease ... bronchitis, and COPD ... #Abnormal #Diagnosis ... #PhysicalExam
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... obstruction • COPD ... in the adjacent lung ... of the affected lung ... mycobacteria Treatment
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
absence of intrinsic lung ... cycles after right atrial ... on radioactive lung ... ) on room air Treatment ... #management #treatment