Chromosome Microarray
Chromosome MicroarrayUpdated May 9 2008
    
Number
510002
CPTCPT - Updated May 13 2008
83891; 83892 (x3); 83894 (x2); 83898 (x7); 88271 (x99); 88291
Related InformationRelated Information - Updated May 12 2008
Fluorescence in situ Hybridization (FISH), Microdeletion Syndromes [510388]
Synonyms
SNP Array ; CGH ; WGA
Special Instructions
Please provide family history and/or clinical indications.
Specimen
Whole blood
VolumeVolume - Updated May 22 2008
4 mL
Minimum VolumeMinimum Volume - Updated May 22 2008
2 mL
ContainerContainer - Updated May 22 2008
Green-top (heparin) tube (preferred), yellow-top (ACD) tube or lavender-top (EDTA) tube
Storage Instructions
Maintain specimen at room temperature
Causes for Rejection
Quantity not sufficient for analysis; hemolyzed specimens; frozen specimens
Use
This test is used to detect chromosomal imbalance that may be present in: newborn or children with developmental delay/congenital anomalies/autism. UPD can also be detected in most cases.
Limitations
This procedure may be considered by Medicare and other carriers as investigational and, therefore, may not be payable as a covered benefit for patients.

This assay will not detect balanced rearrangements and low level mosaicism.

Methodology
Whole genome SNP based copy number microarray analysis targeting 1.8 million copy number and allele specific genome sites
References
     Shaikk TH. Genetics in Medicine 9(9):617-625 (2007)

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