13 results
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Epiglottitis • Vocal cord ... pneumothorax, COPD ... atelectasis • Lung ... MG, ALS) • ↓ chest ... compliance (e.g., flail
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Disease (Asthma, COPD ... • Interstitial lung ... disease • Pulmonary ... Abnormalities • Chest
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Hypoxemic Respiratory ... : Interstitial lung ... ventilation (V) in the lungs ... Pneumonia, asthma, COPD ... bypassing the lungs
COPD Physical Exam Likelihood Ratios
Barrel Chest - LR 1.5
Pursed Lip Breathing - LR 2.7
Reduced breath sounds
COPD Physical Exam ... LR 11.8 Early inspiratory ... SatyaPatelMD #COPD ... #PhysicalExam # ... LRs #diagnosis #pulmonary
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Asthma vs COPD Presentation ... between attacks COPD ... Hyperresonance, Hypoxemia ... Subxiphoid PMI • COPD ... EricsMedicalLectures/ #Asthma #COPD
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS of Respiratory ... Wall Elasticity (flail ... chest) • Low ... , Interstitial Lung ... #Hypoxia #hypoxemia
Hoover's Sign

Hoover’s sign refers to inward movement of the lower rib cage during inspiration- instead of
associated with COPD ... COPD, and more specifically ... hyperexpansion of the lungs ... Hoovers #Sign #Pulmonary ... #COPD #PhysicalExam
Pulmonary Hypertension Groups - WHO Classification
Group I - Vascular remodeling of pulmonary arteries
 • Idiopathic, HIV,
III - Chronic lung ... disease causing hypoxemia ... • COPD, ILD, ... dyspnea, fatigue, or chest ... dyspnea, fatigue, chest
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... Loss of weight • Chest ... obstruction • COPD ... Physical stigmata of cor ... in the adjacent lung
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
disease, pleuritic chest ... consider infarction, hypoxia ... bronchitis, and COPD ... Breathing #Patterns #Pulmonary ... Abnormal #Diagnosis #PhysicalExam