70 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... PLT in selected cases ... test, ANA (e.g., SLE ... Differential #Diagnosis #Causes ... #Workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
disorders, or other causes ... Quantity: • Primary Causes ... • Secondary Causes ... Differential #Diagnosis #hematology ... #rheumatology #
Hydroxychloroquine Serum Measurement in SLE
 • Terminal elimination half-life = 40 days ([HCQI reflects long-term intake)
Measurement in SLE ... 200ng/mL Best indications ... • Special cases ... #rheumatology # ... levels #lupus #management
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Autoimmune • ITP • SLE ... Quinidine • HIT ... Diagnosis #Algorithm #Causes ... #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... etc) - Viral: HIV ... , HCV, EBV, CMV ... - Autoimmune: SLE ... Diagnosis #Framework #hematology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... • CMV • HIV ... Lymphocytic Leukemia (CBC ... Diagnosis #Algorithm #Causes ... #Hematology #Oncology
Lupus Nephritis Primer
Class I - Minimal Mesangial
Class II - Mesangial Proliferative
Class Ill - Focal Proliferative
Class IV
IV - Diffuse Proliferative ... Lupus #Nephritis #SLE ... Classification #Classes ... differential #diagnosis #management ... #nephrology
Causes of Isolated Neutropenia - Differential Diagnosis Algorithm
Congenital
Medications
 • Anticonvulsants
 • Antibiotics
 • Antithyroid
 • Antihypertensive
Causes of Isolated ... Algorithm Congenital Medications ... Childhood viruses • HIV ... Diagnosis #Algorithm #Causes ... #Hematology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Diagnosis and Management ... 40, F:M 9:1 • Clinical ... Positive in 60-80% of cases ... Usual therapeutic management ... #Summary #rheumatology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
erythematosus (SLE ... (SPA) • Other Causes ... common bacterial causes ... Mycobacterial Causes ... Differential #Diagnosis #rheumatology