Cell Count, Synovial Fluid Without Crystals

CPT: 89051
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Test Details

Test Includes

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

Use

Evaluate body fluid for the presence of RBCs and WBCs and for physical appearance

Methodology

Microscopic and macroscopic examination

Specimen Requirements

Specimen

Synovial fluid only

Volume

1 mL (green or lavender)

Container

Green-top (heparin) tube (preferred) or lavender-top (EDTA) tube

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

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 Polys, 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 % 35477-9
215996 Cell Ct, Synovial w/o Crystals 019489 Comments: 20999-9

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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2017, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf