Apr 5, 2016




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Hematology

Cell Count, CSF

Cell Count, CSF (HCCFCC) Hematology Lab Test

Name: Cell Count, CSF

Test Name: Cell Count, CSF

Health Link Test Code: HCCFCC

LIS Test Code: CFCC

CPT Code(s): 89051

Test Component:

Supernatant color, nucleated cell count, red blood cell count and differential performed from a Wright's stained cytospin.

Methodology: Manual or Impedance Count

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: Differential- 1 day. May be delayed if review by a pathologist is necessary.

Stat In-Lab Turnaround Time: Cell count 1 hour.

Specimen: Cerebrospinal fluid (CSF) or ventricular fluid

Collection Container: Numbered specimen tube from sterile disposable lumbar puncture tray

Also Acceptable: Sterile container

Collection Instructions:

It is preferable to have the first tube analyzed for chemical and serologic studies. Subsequent tubes should be used for microbial and cellular analysis. Indicate on the request form the collection tube number and any past or present malignancies. Specimen must be placed in container that does not contain an anticoagulant.

Collection Volume: 1 mL

Pediatric Collection Volume: 0.5 mL

Stability Ambient:

2 hours

Stability Refridgerated:

2 hours

Stability Frozen:

Not acceptable

Sample Analyzed: Cerebrospinal fluid (CSF) or ventricular fluid aliquot

Testing Volume: 1 mL

Pediatric Testing Volume: 0.5 mL

Specimen Transport:

Transport specimen to hospital laboratory immediately. Transport with coolant pack if coming from clinic location.

Unacceptable Criteria:

Samples that are clotted are not acceptable.



Analyte Age Reference Range
Nucleated Cell Count (NCC) <13 years 0-10 cells/uL
Nucleated Cell Count (NCC) >=13 years 0-5 cells/uL
Red Blood Cell Count (RBC) all ages 0 cells/uL


On samples with abnormal cells, a hematopathologist's written interpretive report is issued as a separate report.

Interpretation Type: Reference Interval

Test Limitations:

Very small sample sizes may fail to demonstrate abnormal cells.

Critical Calls: yes

Additional Information:

Differential results may not be available until after pathology review. A professional fee may be associated with this test. See separate Laboratory Test Directory entries for body fluid cell counts.