| Test Description |
|
Test Name
|
Chromosome Analysis, Effusions, Cerebrospinal Fluid |
|
Synonym(s)
|
Cytogenetics, Effusions, Cerebrospinal Fluid
Karyotype, Effusions, Cerebrospinal Fluid
|
|
Description
|
Cytogenetic analysis of cells from effusions or cerebrospinal fluid to assess for the presence of neoplastic clones. |
|
Methodology
|
A direct harvest or harvest after overnight culture, followed by G-banding with trypsin-Wright stain. Twenty metaphase cells are fully analyzed and at least two are karyotyped. |
|
Performed
|
Daily. |
|
Turnaround Time
|
10 days - 3 weeks. Preliminary results can be provided sooner if necessary. |
|
Specimen Requirements
|
At least 4-5 cc (up to 1 liter) aseptically collected fluid/effusion in a sterile container or syringe.
Note: Deliver to lab at room temperature within 24 hours. If collected over a weekend, call the laboratory to make arrangements for specimen delivery. May be refrigerated if not transported immediately. Do not freeze. Protect from heat or cold.
|
|
Rejection Criteria
|
Frozen, fixed, clotted or grossly contaminated specimens. Specimens older than 24 hours. |
|
CPT Code(s)
|
88239, 88262, 88291
More than 20 cells counted: add 88285
More than 2 karyotypes: add 88280
Fewer than 15 cells counted: 88239, 88261, 88280, 88285, 88291
No cells available for analysis, or study cancelled after initiation of culture: 88239 |
|
Reference Range
|
See interpretive report. |
|
Contact
|
Cytogenetics Lab: (214) 645-7000
Customer Service: (214) 645-7057 or Toll Free (877) 887-8136 |
