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Test Code LAB211 CELL COUNT, SYNOVIAL FLUID

Important Note

When there are less than 50 cells available to count on the differential smears, we will not be reporting out the percentage of cell types or absolute counts as the accuracy and reliability of the differential is low.  A comment will be entered that states the number of cells counted and the cells that are present.  The charge for the differential will be credited.

This test is subject to reflex testing, see Laboratory Reflex Testing Policy, you have the option to decline reflex testing if you believe it is not medically necessary. If any nucleated cells are present, a differential will be performed.

Additional Codes

Epic Code Atlas Code Mayo Access ID Order LOINC
LAB211 SYNCT N/A in process

 

Specimen Information

Container Specimen Temperature Collect Vol Submit Vol Min Vol
Lav Top (EDTA) Synovial Fluid Refrigerate 4 mL 3 mL 0.5 mL

Samples may be received in syringes, sterile evacuated containers, or sterile specimen cups.  Ideally, the sample for a cell count would be placed in an EDTA anticoagulated tube.

Submit promptly to the lab, cells deteriorate on standing.

Test Schedule / Analytical Time / Test Priority

Daily / 24 hours / Available STAT

Method

Manual cell count or automated cell count

CPT(s)

Description CPT
  89050

 

Instrumentation

Manual method or Sysmex XN 9000

Reference Range

Nucleated Cell Count: 0-200/cumm

Mono/Macro: 55-75%

Lymphocytes: 10-20%

Neutrophils: 10-24%

Section

Hematology

Performing Location

University of Vermont Medical Center

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes

Result Code LOINC(s)

Result Code Reporting Name LOINC Code
RBCSYN RBC 797-1
WBCSYN Nucleated Cells 53557-5
SYCOM Comment 59466-3