52 results
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
pneumonia • Water: pulmonary ... pneumothorax, COPD ... asthma • Pleural disease ... 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 disease ... Hypoventilation Syndrome
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia ... pHTN, Advanced COPD ... Shock • Airway Disease ... : Asthma, COPD, ... #hypoxia #Differential
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Connective Tissue Disease ... Congenital Heart Disease ... Valvular Lung Disease ... and/or Hypoxemia ... Lung Disease
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Hypoventilation: CNS ... neuromuscular disease ... #Hypoxia #Differential ... Diagnosis #Algorithm #pulmonary
Key features on examination in COPD (Chronic obstructive pulmonary disease)

#Diagnosis #PhysicalExam #COPD #Manifestations #Features #Diagram
examination in COPD ... Chronic obstructive pulmonary ... disease) #Diagnosis ... #PhysicalExam # ... COPD #Manifestations
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Obstructive Lung Disease ... , Interstitial Disease ... Interstitial Lung Disease ... #Hypoxia #hypoxemia
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
to chronic lung disease ... (COPD) • Hypoxia ... • Pulmonary hypertension
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
hernia, Obesity CNS ... Neuromuscular disease ... Glycogen storage disease ... Mitochondrial disease ... failure), Thyroid disease
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
restrictive lung disease ... consider infarction, hypoxia ... In lung disease ... bronchitis, and COPD ... #Pulmonary #Abnormalities