2223 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Right to Left Shunt ... Right to Left Shunt ... Hypoxemia #Hypoxia #Differential
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
the Newborn - Differential ... Left-to-Right Shunt ... Right-to-Left Shunt ... Cyanosis #Newborn #Differential
Differential Diagnosis: Cyanosis - Mnemonic "COLD PALMS"
Peripheral cyanosis 
• Cold 
• Obstruction 
• LVF and shock
Differential Diagnosis ... sulfhemoglobinemia • Shunt
Patent Ductus Arteriosus (PDA) on Cardiac MRI

16 y with Syncope /differential cyanosis / clubbing - PDA
with Syncope /differential ... PDA with R to L shunt
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Right-to-Left Shunt ... Hypoxemia #Hypoxia #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Right to Left Shunt ... - Anatomic Shunt ... - Physiologic Shunt ... Hypoxia #hypoxemia #differential
AEIOU TIPS - Mnemonic for Causes of Altered Mental Status
A - Alcohol, Acidosis, Ammonia, Arrhythmia
E -
Occupying Lesions, Shunt ... encephalopathy #diagnosis #differential
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia - Differential ... Alkalosis • Shunt ... Hypoxemia #hypoxia #Differential
Non-cirrhotic Hyperammonemia - Differential Diagnosis Framework

Hematologic & Vascular:
 • Multiple myeloma & Acute leukemia (plasma cells
Hyperammonemia - Differential ... portosystemic shunt ... Hyperammonemia #ammonia #Differential
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea - Differential ... cava syndrome • Shunt ... 2LmUODZ #Dyspnea #Differential