Postnatal Whole Genome SNP Microarray Dx

Synonyms

• LAB14855
• POSTNATAL WHOLE GENOME SNP MICROARRAY DX

Cerner Name

Postnatal Whole Genome SNP Microarray Dx

Clinical Info

The MicroarrayDx whole-genome CMA contains 2.67 million probes placed throughout the genome that are spaced on average 880 bases apart in genic regions and approximately 1700 bases apart in non-genic regions.There are 1.9 million non-polymorphic probes for detection of copy number variants (CNVs). The array can identify deletions >25 kb including at least 25 consecutive probes and duplications >50 kb including at least 50 consecutive probes. In addition, this CMA contains 750,000 SNP probes spread throughout the genome, which provide information about regions of homozygosity (ROH) including uniparental disomy (UPD) and identity by descent (parental consanguinity) on all autosomes. Autosomal ROH is reported when at least one region of homozygosity of >10 Mb or two regions that are each >8 Mb are identified. Any additional ROH calls >5 Mb are included in the report.

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

2-5 mL whole blood (1 mL minimum volume)

Container

Lavender EDTA or Sodium Heparin Dark Green Tube 

Collection Instructions

Send to the laboratory ASAP at room temperature 20-25˚C. 
If there is a 48 hour or more delay in transportation, store the sample in a refrigerator at 4˚C. DO NOT FREEZE
 
NOTE: Pertinent medical information including informed consent and suspected diagnosis is required.     

Transport Instructions

Room temperature

Specimen Stability

48 hours at room temperature. After 48 hours, store in a refrigerator at 4C. DO NOT FREEZE.

Methodology

Whole genome SNP chromosomal microarray

Days Performed

Monday to Friday, TAT 21 Days

Performing Laboratories

• Northwell Health-CFAM

CPT

81229

PDM

258566

Results

Result Interpretation

Forms