|Aneuploidy by FISH (Neonatal)||
Fluorescence in situ hybridization (FISH)
|Container Type||Container Size||Specimen Volume|
Green tube (Sodium heparin), No Gel
|3 mL||3 mL|
Room temperature - 24 hour(s)
- Do not centrifuge
- Do not freeze
- Transport to laboratory as soon as possible
- Keep at room temperature
Reasons for Rejection
- Wrong collection tube
- Frozen specimen
- Centrifuged specimen
- Clotted specimen
- Serum sample
Submission of a completed Genetic Test Requisition Form is required. Please call Cytogenetics Lab at (614) 722-5321 to obtain the form. Physician MUST call the Cytogenetics Lab prior to sending specimen. Testing not performed on weekends; if weekend reporting is required, please call the lab before sending a specimen to discuss weekend reporting option.
This test evaluates uncultured interphase cells for numerical abnormalities of chromosomes 13,18, X, and Y and is used to screen for common numerical chromosome abnormalities such as trisomy 13, trisomy 18, monosomy X (Turner syndrome), triploidy and tetraploidy. This test is performed only in conjunction with chromosome analysis.
Please Note: this test does not screen for aneuploidy of chromosome 21 (e.g. Trisomy 21 / Down syndrome). If the patient is suspected to have trisomy 21, please consider the alternate test called "STAT Chromosome Analysis (test code: STATPB)," which is performed on peripheral blood specimen, has the same result turn-around-time (2 days) as this test, and can evaluate for numerical abnormalities for all chromosomes including chromosome 21.
- 88271 (x4)