Cell Count, Body Fluid

Test ID: 

704367

CPT code:

89051, 89060

Clinical Use:

Evaluate synovial fluid for the presence of RBCs, WBCs, crystals, and for physical appearance

Specimen Type:

Synovial fluid

Requested Volume: 

1 mL

Container Type: 

Green-top (heparin) tube (preferred) or lavender-top (EDTA) tube. The lavender-top (EDTA) tube is not preferred for crystal exam.

Storage Instructions:

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

Rejection Criteria

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