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Test Code LAB211 Synovial Fluid Routine Analysis, Complete

Reporting Title

Synovial Fluid Analysis

Methodology

Macroscopic and Microscopic Analysis

Used as an aid in diagnosis of rheumatic disease and diseases which cause joint symptoms, pain, increase in joint fluid, or destructions of joint space, including rheumatoid arthritis, joint infection, gout, and pseudogout.

Performing Laboratory

OhioHealth Laboratory Services-RMH, GMC,DH, MH, SH and OBH Core Laboratories

Specimen Requirements

Submit 3 mL of synovial fluid in a lavender-top (EDTA) tube(s) and 3 mL (minimum volume:  2 mL) of synovial fluid in a plain, red-top tube(s). (Oxalate or lithium heparin tube is not acceptable.) Forward promptly at ambient temperature only. Do not refrigerate.

Note:  1. If microbiology testing is ordered, please send sample in a syringe.

2. Specimen source is required on request form for processing.

Specimen Transport Temperature

Ambient/Refrigerate NO/Frozen NO

Reference Values

Volume:  ≤1 mL

Appearance:  clear to straw colored

WBC:  0-200/µL

RBC:  0/µL

Neutrophils:  <25%

Protein:  ≤3.0 g/dL

Crystals:  negative

Fibrin Clot: Negative

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

84157 - protein

89051 - cell count with differential

89060 - crystal identification