Test Code LAB1019 Cell Count with Reflex to Differential, Synovial Fluid
Methodology
Hemocytometer/Digital Imaging with DxU 840m Iris
Light Microscopy for differential
Performing Laboratory
CentraCare Laboratory Services
Specimen Requirements
Specimen Type: Synovial fluid
Container/Tube: Green top (sodium heparin)
Specimen Volume: Entire collection
Collection Instructions:
1. Physician collects specimen.
2. Invert tube gently 8 to 10 times to prevent clotting.
Specimen Transport Temperature
Ambient
Reference Values
White count: <200 /uL
Differential:
Polynuclear: < 25%
Mononuclear: > 75%
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
89050 - Cell Count
89051 - Differential