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Test Name:Aneuploidy FISH X/Y/18, 13/21
Test Number:4280
Collect:Cytogenetics Specimen Collection
Container:Amniotic Fluid: Sterile 15 mL Falcon tube
Sterile 15 mL Falcon Tube

Chorionic Villi: Specimen cup filled with CVS Collection Media, Hanks Balance Salt Solution or Sterile Saline
CVS Media

Peripheral Blood: Na Heparin Tube - Dk Green Top
Sodium Heparin (Na Heparin) Tube
Processing:Submit entire specimen
Transport/Stability:Ambient
Alternate Names:Perinatal FISH
Trisomy 13, 18 or 21
Sex chromosome aneusomy
Down Syndrome
Edwards Syndrome
Patau Syndrome
Turner Syndrome
Klinefelter Syndrome
Performing Lab:AHL - Cytogenetics; Z
Days Set Up:Mo - Fr
Expected TAT:1 - 3 days for STAT analysis
Ref. Ranges:Normal or abnormal with interpretation.
Note: The Cytogenetics lab does not report mosaic FISH results.
Collection/
Processing Details:
This interphase FISH test MUST be ordered with a chromosome study or chromosomal microarray (CMA) analysis.

For prenatal specimens, patient should receive genetic counseling prior to ordering.

FDA Cleared FISH Analysis

Test Ordering For Excellian Users:
Order Cytogenetics (CYG) testing by specimen type.
Answer the questions in Excellian to select the test name and complete the test order.

Specimen = Amniotic Fluid: LAB4280A
Specimen = Chorionic Villi: LAB4280B
Specimen = Blood: LAB4280F
Method:Fluorescence in situ Hybridization (FISH)
CPT Codes:Bill Code PERP

88271 x 5
88274 x 2
Supply Connection:Cytogenetics Congenital Request Form
Related Article:Congenital Request Form Completion Instructions
Date Created:02/16/2011
Revised Date:06/15/2015