Cerebrospinal Fluid



  • Tech Only CPT
  • Tech Pro CPT
  • PowerPath Code NGCS
  • Schedule Monday to Friday
  • Turn Around Time Within 1-2 business days of receipt
  • Disease State Benign Conditions, Leukemia, Lymphoma, Malignant Conditions, Metastatic Cancers
  • Methodology Cytology

Specimen Requirements

Container: Sterile container, well stoppered tube or in RPMI if for Flow Cytometry.
Stability: Refrigerated.
Preferred Volume: 5.0mL.
Minimum Volume: 0.5mL Cytology alone. 1.0mL for Cytology and Flow Cytometry.

Clinical Significance

Cellular morphology of cytologic specimens is interpreted to diagnose inflammatory, neoplastic and non-neoplastic conditions. In addition, cytologic diagnoses is used to monitor recurrent and metastatic malignant conditions.

Required Patient Info

Requisition should include previous history, including tumor type (especially regarding lymphoma or leukemia).

Storage and Transportation

Transport refrigerated to laboratory ASAP.

Cause for Rejection

Any samples suspected of having prion disease will not be accepted. Frozen specimens, specimens older than 3 days, specimens in improper media and specimens without two (2) patient identifiers. Upon review, the technologist/pathologist may determine the material is unsatisfactory for proper evaluation.


Liquid Specimen: 1 weekPrepared Slides: 5 years