19 results
Approach to a Positive (+) Rheumatoid Factor (RF)
(+) RF does not always = RA
Rheumatic disorders:
 •
Approach to a Positive ... • Rheumatoid arthritis ... #rheumatology #laboratory
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
ulceration • Ocular ... skin injury) • Neurologic ... pathognomonic laboratory ... Skin lesions • Positive ... Leukemia, Lymphoma Ocular
Rheumatoid Arthritis - 2020 ACR-EULAR Classification
≥ 6 of 10 points = definite RA
Joint Involvement:
Rheumatoid Arthritis ... - 2020 ACR-EULAR ... joint) - 5 points Serology ... #Rheumatoid #Arthritis ... #diagnosis #EULAR
Lyme Disease: Early and Late Clinical manifestations
Stage 1. Localized
 • EM appears 7-14 days at the
not common) • Laboratory ... • Heralded by neurologic ... years after • Arthritis ... Remitting, chronic • Neurologic
Hepatitis B Virus Serology and Interpretation
HBsAg - Anti-HBs - Anti-HBc - HBeAg - Anti-HBe
 - Acute
Hepatitis B Virus Serology ... immunity) - False-positive ... HepatitisB #HBV #Serology ... Interpretation #diagnosis #laboratory
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
SEROSITIS - RENAL - NEUROLOGIC ... ANA level above laboratory ... antibody level above laboratory ... determined by Positive
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms, Arthritis ... calcium-b) • Laboratory ... Anti-histone - Positive ... versus DIL • Laboratory ... - Anti-dsDNA - Positive
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... celiac disease with serology ... biopsy only if serology ... is positive Bidirectional
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
(ANA) test; if positive ... - Positive in ... more time for the laboratory ... • Hepatitis B serology ... #laboratory #workup
Clinical Manifestations and Diagnosis of Lyme Disease - Borreliosis
Erythema migrans
 - 3-32 days (median: 7-10 days)
- No specific laboratory ... findings, Lyme serology ... antibodies Lyme arthritis ... antibodies (early arthritis ... IgG titers (late arthritis