Cell Count, Synovial Fluid Without Crystals

CPT: 89051
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Test Includes

Microscopic examination for RBCs and WBCs, differential, and physical properties


Expected Turnaround Time

Within 1 day


Related Documents


Specimen Requirements


Specimen

Synovial fluid only


Volume

1 mL


Container

Lavender-top (EDTA) tube


Collection

Follow standard collection procedures.


Storage Instructions

Refrigerate. Transport to the laboratory as soon as possible.


Stability Requirements

Temperature

Period

Room temperature

Unstable

Refrigerated

2 days (48 hours)

Frozen

Unstable

Freeze/thaw cycles

Unstable


Causes for Rejection

Quantity not sufficient for analysis; improper labeling; frozen specimen; specimen more than 48 hours old; gel-barrier tube


Test Details


Use

This test is used to evaluate body fluid for the presence of RBCs and WBCs and for physical appearance.


Methodology

Microscopic and macroscopic examination


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
215996 Cell Ct, Synovial w/o Crystals 005232 Color, Fluid 6824-7
215996 Cell Ct, Synovial w/o Crystals 005233 Clarity, Fluid 9335-1
215996 Cell Ct, Synovial w/o Crystals 005736 Nucleated Cells, Synovial Fld cells/uL 55793-4
215996 Cell Ct, Synovial w/o Crystals 005512 RBC, Fluid /uL 23860-0
215996 Cell Ct, Synovial w/o Crystals 019075 Neut, Fluid % 12238-2
215996 Cell Ct, Synovial w/o Crystals 019091 Lymphocytes, Fluid % 13941-0
215996 Cell Ct, Synovial w/o Crystals 019266 Macrophages % 12230-9
215996 Cell Ct, Synovial w/o Crystals 019463 Eosinophils, Fluid % 12209-3
215996 Cell Ct, Synovial w/o Crystals 019267 Lining Cells, Synovial % 35651-9
215996 Cell Ct, Synovial w/o Crystals 019489 Comments: 20999-9

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