Body Fluid Cell Count and Differential
Label Mnemonic: BFX
Epic code: LAB1017
Downtime form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
6240 RCP
Miscellaneous Body Fluids
Specimen 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.
Collection Medium:
Lavender top tube 3 mL (EDTA) Miscellaneous container; contact laboratory
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)
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.
Count and Wright Stain
CPT Code: