Name: Cell Count, CSF
Test Name: Cell Count, CSF
Health Link Test Code: HCCFCC
LIS Test Code: CFCC
CPT Code(s): 89051
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
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
Sample Analyzed: Cerebrospinal fluid (CSF) or ventricular fluid aliquot
Testing Volume: 1 mL
Pediatric Testing Volume: 0.5 mL
Transport specimen to hospital laboratory immediately. Transport with coolant pack if coming from clinic location.
Samples that are clotted are not acceptable.
|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
Very small sample sizes may fail to demonstrate abnormal cells.
Critical Calls: yes
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.