Body Fluid Cell Count and Differential

Label Mnemonic:	BFX
Epic code:	LAB1017
Order form:	Laboratory Requisition
Supply order:	Supply Order Form
Billing:	Billing Policies
CPT code:	89051

Specimen(s):

Miscellaneous Body Fluids

Collection Medium:

	or
Lavender top tube 3 mL (EDTA)	or	Miscellaneous container; contact laboratory

Minimum:

1.0 mL

Rejection Criteria:

Galeal, cyst fluids, pus from abscesses and biliary drainage are not acceptable specimens.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

3 hours (upon receipt in laboratory)

Comments:

Includes cell counts and total nucleated cell differential if three or more cells are found. The differential is based on the morphologic examination of a wright-stained cytospin preparation. The cells are reported as number per μL; erythrocytes, total nucleated cells, neutrophils, eosinophils, lymphocytes, and a composite group of monocytes-histocytes-macrophages mesothelials. These slides are retained for approximately two months.

Methodology:

Count and Wright Stain

Instructions:

Synovial fluid specimens must be sent in an EDTA tube (lavender top) since they often clot. Samples should be received in the laboratory within four hours of collection.

Sample Processing:

Submit in leak-proof container.
Specimen source is required on requisition for processing.
Do Not Centrifuge.

Sample Storage:

Refrigerate, 2-8°C.

Transport Instructions:

Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.