CCBF - Specimen: Cell Count and Differential, Body Fluid

Test Catalog

Test Name

Test ID: CCBF    
Cell Count and Differential, Body Fluid

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

When abnormal cytologic features are present, the laboratory may reflex to a miscellaneous cytology test. Fee codes for that test vary depending on review process.

Specimen Type Describes the specimen type needed for testing

Body Fluid

Shipping Instructions

Specimen must arrive within 24 hours of collection.

Necessary Information

Indicate specimen source.

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

For Local Accounts Only


Sources: Synovial, pleural, peritoneal and pericardial


Preferred: Body fluid container

Acceptable: EDTA or heparin

Specimen Volume: 1 mL

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

0.7 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild OK; Gross OK







Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Body FluidAmbient (preferred)24 hours
 Refrigerated 24 hours