7 results
Approach to a Positive (+) Rheumatoid Factor (RF)
(+) RF does not always = RA
Rheumatic disorders:
 •
arthritisSLE ... connective tissue (types ... III) • Mixed cryoglobulinemia ... #Factor #RF #rheumatology ... #differential #diagnosis
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Labs/Diagnosis: ... (e.g. systemic lupus ... erythematosus (SLE ... ), rheumatoid arthritis ... #rheumatology #
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... joint • Systemic lupus ... Tests for All Types ... #workup #diagnosis ... #testing #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Differential Diagnosis ... ANCA-associated vasculitis, rheumatoid ... Kikuchi disease • Type-I ... #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
ANCA +MPO) • Cryoglobulinemic ... : Systemic rheumatic ... such as systemic lupus ... vasculitis, and SLE ... #rheumatology #
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
bacterial), acute rheumatic ... spondyloarthropathies, lupus ... Chronic = RA, SLE ... Joint #Pain #MSK #rheumatology ... #approach #workup
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... : • Systemic rheumatic ... diseases, such as SLE ... / ANCA + MPO) Cryoglobulinemic ... #Rheumatology