6 results
Effect of Selected Diseases on Complement Levels - C3, C4
 • SLE C3 ↓ C4 ↓↓
Levels - C3, C4 ... C4 ↓↓ • MCGN type ... C3 ↓ C4 ↓↓ • Cryo ... #Levels #C3 #C4 ... #differential #
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... Diagnosis Algorithm ... • Systemic Lupus ... • Rheumatoid Arthritis ... #Diagnosis #Algorithm
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
arthralgia, and arthritis ... rheumatoid factor level ... • Low serum C4 complement ... level • Immunofixation ... (e.g. systemic lupus
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low complements ... permanent alopecia Differential ... Kikuchi disease • Type-I ... pneumonitis • Diffuse ... levels (C3 and
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Diseases • Septic arthritis ... joint • Systemic lupus ... Tests for All Types ... Screening Tests for Diffuse ... Additional Tests for Diffuse
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... inflammation Others: • Lupus ... such as systemic lupus ... against MPO • Complement ... (Low levels mixed