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

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Rapid Response Management ... Algorithm Stridor ... asthma • Pleural disease ... atelectasis • Lung ... #Hypoxia #differential
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
Heart Failure - Differential ... Diagnosis Algorithm ... Diffuse Lung Disease ... Syndrome ... #HeartFailure #Cardiology
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Causes of Pulmonary ... Hypertension - Differential ... Diagnosis Algorithm ... Pulmonary Arterial ... Hypoxemia: • COPD
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Secondary to chronic lung ... disease (COPD) ... • HypoxiaPulmonary ... hypertension Management ... Tachycardia #MAT #Cardiology
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... , Interstitial Lung ... #Hypoxia #hypoxemia ... #differential #
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... Churg Strauss syndrome ... Acute, Chronic • Pulmonary ... #diagnosis #differential ... #pulmonary #causes
Causes of Diffuse Lung Disease. 
Collagen vascular 
 - Scleroderma 
 - Rheumatoid arthritis 
 -
Causes of Diffuse Lung ... granulomatosis - Churg-Strauss ... syndrome - Giant ... #Diagnosis #Radiology ... #Pulmonology #Differential
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Diagnosis Algorithm ... cirrhosis, nephrotic syndrome ... Stress, Nausea, ... Pulmonary Diseases
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea - Differential ... Diagnosis Algorithm ... Superior vena cava syndrome ... • Interstitial lung ... #Diagnosis #Algorithm