324 results
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
Hypoxia and Hypoxemia ... - Overview Hypoxia ... common type of hypoxia ... inspired) PAO2 - alveolar ... O2 reaches the alveoli
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Hypoxemia / Hypoxia ... Blood: diffuse alveolar ... atelectasis • Lung ... MG, ALS) • ↓ chest ... compliance (e.g., flail chest
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Hyperacute Hypoxemia ... Pneumothorax, Alveolar ... (JVP, edema), Lung ... POCUS (B-lines, lung ... STAT CXR, CTA Chest
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... neuromuscular disease, ↓ chest ... Cardiac, Vascular, Alveolar ... MatthewHoMD #Hypoxemia ... #Hypoxia #Differential
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia ... Pneumothorax, Alveolar ... ARDS, Diffuse Alveolar ... Sophia_Hayes_MD #Hypoxemia ... #hypoxia #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Embolism, Obstructive Lung ... , Interstitial Lung ... #AA #Gradient #alveolar ... arterial #pulmonary #Hypoxia ... #hypoxemia #differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... • Interstitial lung ... Abnormalities • Chest ... Abnormalities #Hypoxemia ... #Hypoxia #Differential
Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Annotated on Chest ... CT Right Lung: ... Lung: • Upper ... lobes #Segments #Chest ... #CT #CTChest #pulmonary
Alveolar Recruitment
Effect of Intensive vs Moderate Alveolar Recruitment Strategies Added to Lung-Protective Ventilation on Postoperative Pulmonary
Alveolar Recruitment ... Intensive vs Moderate Alveolar ... Strategies Added to Lung-Protective ... patients with hypoxemia ... #Lung #Recruitment
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
first part of alveolar ... second part of alveolar ... : Interstitial lung ... direction leads to hypoxemia ... Respiratory #Failure #hypoxia