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Chromosomal Microarray, Autopsy, Products of Conception, or Stillbirth
MessageSendouts, Mayo test code: CMPAC
Test Code
LAB1238171
Alias/See Also
Chromosomal Microarray, POC
CMAPC
CMAPC
CPT Codes
81229
Preferred Specimen
Products of conception or stillbirth
Minimum Volume
Chorionic villus: 10 mg
Muscle-fascia: 1 cm(3)
Other specimen types: See Specimen Required on Mayo test directory.
Muscle-fascia: 1 cm(3)
Other specimen types: See Specimen Required on Mayo test directory.
Other Acceptable Specimens
Autopsy
Amniotic Fluid
Chorionic villus
Amniotic Fluid
Chorionic villus
Transport Container
Refer to Mayo test directory for acceptable container requirements.
Transport Temperature
Ambient
Specimen Stability
Varies
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
Methodology
Chromosomal Microarray
Setup Schedule
Monday - Friday
Report Available
10 to 25 days
Reference Range
Included with report
Clinical Significance
Prenatal diagnosis of copy number changes (gains or losses) across the entire genome
Diagnosing chromosomal causes for fetal death
Determining recurrence risk of future pregnancy losses
Determining the size, precise breakpoints, gene content, and any unappreciated complexity of abnormalities detected by other methods, such as conventional chromosome and fluorescence in situ hybridization (FISH) studies
Determining if apparently balanced abnormalities identified by previous conventional chromosome studies have cryptic imbalances, as a proportion of such rearrangements that appear balanced at the resolution of a chromosome study are actually unbalanced when analyzed by higher-resolution chromosomal microarray
Assessing regions of homozygosity related to uniparental disomy or identical by descent
Diagnosing chromosomal causes for fetal death
Determining recurrence risk of future pregnancy losses
Determining the size, precise breakpoints, gene content, and any unappreciated complexity of abnormalities detected by other methods, such as conventional chromosome and fluorescence in situ hybridization (FISH) studies
Determining if apparently balanced abnormalities identified by previous conventional chromosome studies have cryptic imbalances, as a proportion of such rearrangements that appear balanced at the resolution of a chromosome study are actually unbalanced when analyzed by higher-resolution chromosomal microarray
Assessing regions of homozygosity related to uniparental disomy or identical by descent
Performing Laboratory
Mayo Clinic Laboratories, Rochester, Minnesota
Additional Information
Chromosomal Microarray, Autopsy, Products of Conception, or Stillbirth
