Reactive arthritis laboratory findings

	Reactive arthritis Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Reactive arthritis from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
X Ray
CT
MRI
Ultrasound
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Reactive arthritis laboratory findings On the Web
Most recent articles
Most cited articles
Review articles
Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Reactive arthritis laboratory findings All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Reactive arthritis laboratory findings
CDC on Reactive arthritis laboratory findings
Reactive arthritis laboratory findings in the news
Blogs onReactive arthritis laboratory findings
Directions to Hospitals Treating Reactive arthritis
Risk calculators and risk factors forReactive arthritis laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Laboratory findings consistent with the diagnosis of reactive arthritis include:

Elevated ESR
Elevated C-reactive protein [CRP]
Elevated TLC showing increased PMNs
Synovial fluid analysis to determine cell count, culture, glucose, and presence of crystals.
Additional lab evaluations include testing for HLA-B27, PCR or ELISA for reactive arthritis associated microorganisms.
- Laboratory evaluations required to establish infection with reactive arthritis causing organisms include routine urine exam, culture of stool and urethra.
- Synovial fluid or synovial membrane biopsy for detection of bacterial DNA by PCR or immunofluorescence microscopy