Chromosome RFX to Microarray

Message

Pertinent medical findings must accompany request for chromosome analysis. Call 800-345-4363 to request forms, or photocopy the form from the Genetics Appendix. This test may also be performed on adults. When a child tested with this assay is found to hav

Test Code

052045

Alias/See Also

aCGH; CGH; Chromosome RFX Microarray Pediatric/Adult; High Resolution G-Banding; Prometaphase Analysis

Preferred Specimen

Whole blood

Minimum Volume

2 mL

Instructions

Using sterile technique, collect 10 mL of blood into a green-top (heparin) tube or syringe. Invert the tube several times to prevent coagulation. Specimens must be sent the same day as collected and arrive in the laboratory within 48 hours of venipuncture.

Transport Container

Green-top (heparin) tube

Transport Temperature

Maintain specimen at room temperature. Specimen may be refrigerated if there is a delay in shipment. Do NOT freeze.

Specimen Stability

48 hours

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis; clotted specimen; specimen over 48 hours old; use of improper anticoagulant; frozen specimen

Methodology
Culture of cells in special medium; colcemid arrest of cells in prophase stage of mitosis following cell synchronization techniques; if cytogenetic analysis is normal, high resolution microarray targeting 2.695 million copy number and allele-specific geno

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.