CSF Hematology (HSF)
Department: Hematology
Test Synonym(s): LAB3145, HSF, Cerebral Spinal Fluid
CPT Codes: 89051
Methodology: Call Lab for assistance at 615-875-5227
Tube Type: Sterile container; Clean specimen container and/or the Plastic LP tube (Third or fourth tube collected is preferable. No glass containers will be accepted.)
Specimen: CSF: Fresh specimen; deliver to the lab immediately
Volume: Obtain as much as clinical judgement allows
Minimum Volume: 3 cc
Temperature: Refrigeration is optimal
Stability: Specimen remaining after routine testing completed is treated with RPMI and kept for 7 days
Reasons for Rejection: Mislabeled specimen, specimen received in a glass container, syringes received with needles attached, specimen leaked out in transit, insufficient fluid for processing
Days Performed: Monday - Friday; closed major Holidays
Times Performed: 8:30 a.m. - 4:30 p.m
TAT: 48 hours (excluding weekends and holidays) for routine cases. Cases with concomitant flow cytometry may require a longer turn-around time
Significance: This test should be ordered if the patient has a prior or suspected history of Leukemia or Lymphoma. Requires Pathologist review
Special Instructions: Lab must be informed if the patient had prior or has suspected Leukemia or Lymphoma. For patients with a history of or suspected Carcinoma (or malignancy other than Heme), it is recommended that CSF Cytology (Test code CYC) be ordered and sent to Cytopathology
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