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Jul 31, 2017

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UWHC,UWMF,

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

Leukemia/ Lymphoma Screen, CSF

Leukemia/ Lymphoma Screen, CSF (HCCFLLREV) Hematology Lab Test

Name: Leukemia/ Lymphoma Screen, CSF

Test Name: Leukemia/ Lymphoma Screen, CSF

Health Link Test Code: HCCFLLREV

LIS Test Code: CFLLREV

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

Clinical Information:

CSF morphology analysis from patients with known or suspected leukemia or lymphoma.

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:

CSF samples for morphology analysis from patients with known or suspected leukemia or lymphoma only. Indicate collection tube number. 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 UWHC Hospital Laboratory immediately. Transport with coolant pack if coming from clinic location.

Unacceptable Criteria:

Grossly bloody samples that are clotted are not acceptable.

Interpretation:

 

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

 

A hematopathologist's written interpretive report is issued as a separate report.

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. Cell counts are included with this test, a separate order is not necessary. See separate Laboratory Test Directory entries for body fluid cell counts.