Chromosome Analysis, Blood
Green top (sodium heparin) tube
5.0 mL (minimum 1.0 mL)
Cause for rejection:
Clotted, non-sterile, or frozen specimen
Mon-Fri (0700-1600) Sat (0900-1300)
Cell culture of lymphocytes, harvest and chromosome analysis with G-banding
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, Newborn Smear or Trisomy Analysis (Chromosome 13, 18 or 21) by DNA FISH, Newborn Smear). Include pertinent medical findings on the requisition with suspected diagnosis and/or indication(s) for testing.
OC Power Word:
Interpretation is provided with report. Follow-up studies recommended as appropriate.
88230, 88262, 88291
Karyotype; Peripheral Blood Lymphocyte Karyotype