12 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... neuromuscular disease, ↓ chest ... : • Right-to-Left ... MatthewHoMD #Hypoxemia ... #Hypoxia #Differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... - Differential Diagnosis ... Pulmonary Right to Left ... Abnormalities • Chest ... #Hypoxia #Differential
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Hyperacute Hypoxemia ... and Management Differential ... STAT CXR, CTA Chest ... , Echocardiogram ... #Hypoxia #Workup
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Gradient • Right to Left ... arterial #pulmonary #Hypoxia ... #hypoxemia #differential
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Syndromes (PRS) are life-threatening ... coagulopathy) • CBC w differential ... o infection • Echocardiogram ... typically seen on chest ... Renal #Syndromes #differential
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
Multiple household members ... worst headache of life ... with or without trauma ... signs #symptoms #differential
Hemopericardium in Cardiac Arrest on POCUS Echocardiogram
GSW to left chest. Prehospital arrest. Note has hemopericardium-isoechoic to
Arrest on POCUS Echocardiogram ... GSW to left chest ... Arrest #POCUS #Echocardiogram ... #clinical #trauma
Differential Diagnosis of Respiratory Acid-Base Disorders
Alkalosis
A. Central nervous system stimulation: Pain, Anxiety, psychosis, Fever, Cerebrovascular accident,
Differential Diagnosis ... encephalitis, Tumor, Trauma ... Hypoxemia or tissue ... hypoxia: High altitude ... acidosis #alkalosis #differential
Causes of Primary and Functional Mitral Regurgitation (MR) 
Causes of primary mitral regurgitation
 - Rheumatic heart
annular plane into left ... Direct/indirect chest ... wall trauma, LV ... Primary #Functional #Differential
Heart Point Sign
Patient presenting after stab wound to left anterior chest.
A-lines where you should be seeing
stab wound to left ... anterior chest. ... HeartPoint #Sign #trauma ... clinical #pocus #echocardiogram