22 results
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
pneumothorax, COPD ... asthma • Pleural disease ... atelectasis • Lung ... 12 / shallow breathing ... Hypoventilation: • CNS
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Mismatch • Airway Disease ... (Asthma, COPD) ... • Parenchymal Disease ... • Interstitial lung ... diseasePulmonary
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Connective Tissue Disease ... Congenital Heart Disease ... Disease and/or ... Hypoxemia: • COPD ... Breathing Miscellaneous
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Disease, Interstitial ... Disease and more ... Disease Unremarkable ... #Hypoxia #hypoxemia
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Secondary to chronic lung ... disease (COPD) ... • HypoxiaPulmonary
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Diseases (ILD) ... Connective Tissue Disease ... connective tissue disease ... disease (RB-ILD ... #Diseases #ILD
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
disease, pleuritic ... consider infarction, hypoxia ... In lung disease ... bronchitis, and COPD ... #Pulmonary #Abnormalities
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
obesity-hypoventilation syndrome ... diseases, pulmonary ... direction leads to hypoxemia ... Pneumonia, asthma, COPD ... hepatopulmonary syndrome
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... Connective tissue diseases ... obstruction • COPD ... , in advanced disease ... in the adjacent lung
Pulmonary Hypertension Groups - WHO Classification
Group I - Vascular remodeling of pulmonary arteries
 • Idiopathic, HIV,
Left-sided heart disease ... , aortic valve disease ... , mitral valve disease ... disease causing ... hypoxemiaCOPD