6 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
factor activity ... (e.g. systemic lupus ... erythematosus ( ... SLE), rheumatoid ... #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 ... #Diagnosis #Rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... erythematosus ( ... Tests for All Types ... factor (RF) and ... #workup #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: Systemic rheumatic ... such as systemic lupus ... erythematosus, ... vasculitis, and SLE ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

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