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

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Algorithm Stridor ... asthma • Pleural disease ... atelectasis • Lung ... 12 / shallow breathing ... Hypoventilation: • CNS
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Causes of Pulmonary ... Pulmonary Arterial ... • Valvular Lung ... Hypoxemia: • COPD ... Breathing Miscellaneous
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Secondary to chronic lung ... disease (COPD) ... • HypoxiaPulmonary ... #Multifocal #Atrial
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... , Interstitial Lung ... #pulmonary #Hypoxia
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
diseases, pulmonary ... direction leads to hypoxemia ... Pneumonia, asthma, COPD ... hepatopulmonary syndrome ... shunting (eg, atrial
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
consider infarction, hypoxia ... hyperventilation syndrome—a ... In lung disease ... bronchitis, and COPD ... #Pulmonary #Abnormalities
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... obstruction • COPD ... • Mounier-Kuhn syndrome ... in the adjacent lung ... of the affected lung
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Hepatopulmonary Syndrome ... absence of intrinsic lung ... upright position • Hypoxemia ... cycles after right atrial ... on radioactive lung
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
life-threatening diseases ... Inflammatory eye disease ... sparing of the lung ... blood retum in serial ... differential #diagnosis #management