8 results
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms, Arthritis ... • Immunologic Workup ... 90% - Low complement ... • Immunologic Workup ... 80% - Low complement
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... , oral ulcers, Lupus ... • Immunologic Workup ... Positive in 60-80% of cases ... 80% - Low complement
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... joint • Systemic lupus ... - CCP antibody testing ... #laboratory #workup ... #diagnosis #testing
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... inflammation Others: • Lupus ... such as systemic lupus ... against MPO • Complement ... vasculitis, and SLE
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... • Low serum C4 complement ... (e.g. systemic lupus ... erythematosus (SLE
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
spondyloarthropathies, lupus ... Like in this case ... Chronic = RA, SLE ... , psoriatic arthritis ... rheumatology #approach #workup
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
Constitutional symptoms, Arthritis ... is rare in DIL, SCLE-DIL ... • Immunologic Workup ... 90% - Low complement ... Discontinuation of causal
Antiphospholipid Syndrome (APLS) Testing - Hypercoagulable Workup Algorithm
INDICATIONS FOR TESTING:
 • Vascular thrombosis
Hypercoagulable Workup ... Algorithm INDICATIONS ... maternal chromosomal causes ... : • Lupus Anticoagulant ... #Algorithm #diagnosis