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Chromosome Analysis, Blood

Cytogenetics Laboratory : Cytogenetics

Test ID/Workstation :
Specimen Type:
Tube Type:
Green top (sodium heparin) tube
Collection Volume:
5.0 mL (minimum 1.0 mL)
Cause for Rejection:
Improper/no specimen label, clotted, non-sterile, or frozen specimen
Mon-Fri (0700-1600) Sat (0900-1300)
Cell culture of lymphocytes, harvest and chromosome analysis with G-banding
Special Instructions:
Five blood gas tubes can be used. Rapid (24 hour) determination of chromosome copy number and category for sex chromosomes or to r/o trisomy 13, 18 or 21 can be ordered with peripheral blood sample (see Sex Chromosome Analysis by DNA FISH, or Trisomy Analysis (Chromosome 13, 18 or 21) by DNA FISH). Include pertinent medical findings on the requisition with suspected diagnosis and/or indication(s) for testing.
3-21 days
Additional Info:
Interpretation is provided with report. Follow-up studies recommended as appropriate.
CPT Code:
88230, 88262, 88291
Karyotype; Peripheral Blood Lymphocyte Karyotype
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