44 results
Wide Complex Tachycardia - ECG Definition and Causes
 • Wide Complex Tachycardia (WCT) is a cardiac
Tachycardia - ECG ... aberrancy in the His-Purkinje ... Ventricular pacing • Electrocardiogram ... diagnosis #cardiology #ekg ... #ecg #electrocardiogram
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Drugs (antibiotics e.g ... Viral: HSV, EBV, HIV ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology
Hyperkalemia (9.5) on ECG

ECG of an unconscious young man thought to be in "V-Tach"

His rate is
Hyperkalemia (9.5) on ECG ... ECG of an unconscious ... young man thought ... #Hyperkalemia #ECG ... #EKG #Electrocardiogram
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Rare • Drugs (e.g ... • Vasculitis Coagulation ... Diagnosis #Algorithm #Causes ... #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Toxic Damage (e.g ... Displacement (e.g ... Quinidine • HIT ... Foreign Surface (e.g ... #Hematology
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Summary of Coagulation ... Malabsorption (e.g ... warfarin, DOACs (e.g ... Autoimmune disorders (e.g ... comparison #diagnosis #hematology
Causes of Arterial and Venous Thrombosis - Differential Diagnosis Framework

STRUCTURAL:
 - PFO: paradoxical emboli
 - Popliteal
Causes of Arterial ... artery aneurysm: Causes ... intravascular coagulation ... neoplasms - PNH - HIT ... Diagnosis #clots #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
intravascular coagulation ... (usually IgG) (e.g ... (usually IgM) (e.g ... deficiencies (e.g ... differential #diagnosis #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
vascular disorders, coagulation ... Platelet defects • Coagulation ... Ig A vasculitis/HSP ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Causes of Splenomegaly ... • Thrombus (e.g ... Myeloproliferative disorders (eg ... Diagnosis #Algorithm #Causes ... #Hematology