DNA extraction; interpretation; limited five-cell high-resolution chromosome analysis (two analyses, one karyotype)
A completed Clinical Questionnaire for SNP Microarray should accompany specimens. Call 800-345-4363 to request the appropriate form, or print/photocopy the form from the Genetics Appendix online.
This test may also be performed on adults. When a child tested with this assay is found to have an abnormal array of unknown clinical significance that may be clarified through parental testing, there will be no charge associated with the follow-up parental testing that is based on the child's results. All other parental follow-up testing will be charged, including (but not limited to) autism susceptibility regions, known microdeletions/microduplications, autosomal recessive deletions/duplications, and large copy-number changes possible and likely pathogenic significance. The child's abnormal array results will indicate whether parental testing will be performed at no charge and will include the appropriate parental follow-up test number. For parental follow-up testing for arrays not performed at LabCorp, call 800-345-4363 to speak to a genetic counselor.
14 - 17 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
For more information, please view the literature below.
2 mL (neonatal) (Note: This volume does not allow for repeat testing.)
Green-top (heparin) tube (preferred); yellow-top (ACD) tube is acceptable
Maintain specimen at room temperature.
Hemolysis; gross contamination; clotted specimen; frozen specimen; fixed specimen; improper or too much anticoagulant
This test will detect chromosomal imbalances that could be associated with developmental delay/congenital anomalies. It provides detection of possible uniparental disomy of any chromosome, the percent and location of homozygosity, including the degree of identity by descent.
This SNP assay does not detect balanced rearrangements, low-level mosaicism (<10%), marker chromosomes that only contain heterochromatin or tetraploidy.
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.
SNP microarray analysis is performed using the Cytoscan® HD platform, which uses more than 743,000 SNP probes and 1,953,000 NPCN probes with a median spacing of 0.88 kb.
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|511535||Blood Chrom 5 Cell Cnt + CMA||052101||Cells Counted||62361-1|
|511535||Blood Chrom 5 Cell Cnt + CMA||052102||Cells Karyotyped||55199-4|
|511535||Blood Chrom 5 Cell Cnt + CMA||052103||Cells Analyzed||62360-3|
|511535||Blood Chrom 5 Cell Cnt + CMA||052116||GTG Band Resolution Achieved||62358-7|
|511535||Blood Chrom 5 Cell Cnt + CMA||052115||Cytogenetic Diagnosis||62365-2|
|511535||Blood Chrom 5 Cell Cnt + CMA||052039||Cytogenetic Interpretation||50619-6|
|511535||Blood Chrom 5 Cell Cnt + CMA||052157||Specimen Type||31208-2|
|511535||Blood Chrom 5 Cell Cnt + CMA||052041||Director Review:||48672-0|
|511535||Blood Chrom 5 Cell Cnt + CMA||512123||51967-8|
|511535||Blood Chrom 5 Cell Cnt + CMA||510004||Specimen Type||31208-2|
|511535||Blood Chrom 5 Cell Cnt + CMA||510005||# of Genotyping Targets||N/A|
|511535||Blood Chrom 5 Cell Cnt + CMA||510006||Array Type||N/A|
|511535||Blood Chrom 5 Cell Cnt + CMA||510007||Diagnosis||62357-9|
|511535||Blood Chrom 5 Cell Cnt + CMA||510109||Interpretation||62365-2|
|511535||Blood Chrom 5 Cell Cnt + CMA||510035||Director Review:||48672-0|
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