Feb 22, 2017




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Hematology

Cell Count, Synovial Fluid

Cell Count, Synovial Fluid (HCSYCC) Hematology Lab Test

Name: Cell Count, Synovial Fluid

Test Name: Cell Count, Synovial Fluid

Health Link Test Code: HCSYCC

LIS Test Code: SYCC

CPT Code(s): 89051

Test Component:

Color, turbidity, nucleated cell count, red blood cell count and differential performed from a Wright's stained cytospin.

Methodology: Manual or Impedance Count

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: Differential- 1 day. May be delayed if review by a pathologist is necessary.

Stat In-Lab Turnaround Time: Cell count 1 hour.

Specimen: Synovial fluid

Collection Container: See collection instructions.

Collection Instructions:

Preferred Collection Container: Sterile container.


For bloody specimens, a lavender top tube (with liquid or sprayed EDTA) is recommended.


For synovial fluids, a capped syringe is acceptable (needle must be removed before submitting to lab).

Collection Volume: 9 mL

Pediatric Collection Volume: 5 mL

Stability Ambient:

8 hours

Stability Refridgerated:

8 hours

Stability Frozen:

Not acceptable

Sample Analyzed: Synovial Fluid

Testing Volume: 2 mL

Pediatric Testing Volume: 1 mL

Specimen Transport:

Transport specimen to UWHC Hospital Laboratory immediately. Transport with coolant pack if coming from clinic location.

Unacceptable Criteria:

Samples that are clotted are not acceptable.


On samples with abnormal cells, a hematopathologist's written interpretive report is issued as a separate report.

Test Limitations:

Very small sample sizes may fail to demonstrate abnormal cells.

Critical Calls: yes

Additional Information:

Differential results may not be available until after pathology review. A professional fee may be associated with this test.