9 results
Approach to a Positive (+) Rheumatoid Factor (RF)
(+) RF does not always = RA
Rheumatic disorders:
 •
• Rheumatoid arthritis ... • SLE, Sjogren's ... connective tissue (types ... #laboratory #differential ... #diagnosis
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
diseases: - 10% SLE ... Labs/Diagnosis: ... (e.g. systemic lupus ... erythematosus (SLE ... #rheumatology #
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms, Arthritis ... calcium-b) • Laboratory ... versus DIL • Laboratory ... #table #rheumatology ... #diagnosis #management
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... and fever) and laboratory ... Differential Diagnosis ... Kikuchi disease • Type-I ... #Rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... joint • Systemic lupus ... Tests for All Types ... #laboratory #workup ... #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
ANCA +MPO) • Cryoglobulinemic ... inflammation Others: • Lupus ... such as systemic lupus ... vasculitis, and SLE ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... diseases, such as SLE ... / ANCA + MPO) Cryoglobulinemic ... - interstitial keratitis ... #Rheumatology
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 ... calcium-b) • Laboratory ... #DIL #rheumatology ... #diagnosis #treatment
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
overlaps with RA, SLE ... IV RTA, TYPE I ... Vasculitis: • 7%, Cryoglobulinemia ... Arthralgia and Arthritis ... Sjogrens #Syndrome #Rheumatology