Chromosomal microarray analysis
(CMA) provides comprehensive genetic testing for the most common chromosomal conditions as well as a large number of severe genetic conditions not detected by traditional chromosome analysis.
What does a CMA test for?
Chromosomal microarray (CMA) testing looks for
extra (duplicated) or missing (deleted) chromosomal segments
, sometimes called copy number variants (CNVs).
Can CMA detect autism?
Many other genetic tests are also available, but
CMA is the only first-line genetic test recommended for all individuals with
autism, intellectual developmental disorder, or global developmental delay.
What is CMA diagnosis?
Chromosomal microarray
(CMA), which detects clinically significant copy-number variants (CNVs), has been recognized as a first-tier test for any individual with developmental delay (DD), autism spectrum disorder (ASD), or multiple birth defects (MCA; PMID: 20466091).
What syndromes does a microarray test for?
A microarray is the recommended first line genetic test for
developmental delay (DD), intellectual disability (ID) and autism spectrum disorders (ASD)*
. CMA however, does not identify fragile X syndrome (FXS), a common cause of intellectual disability.
How much does the CMA exam cost?
Financial Cost
CMA exam fees are
$300 or $350 per part
, depending on how you register and when you take the exams, for a total of $600 or $700.
How long does it take to get a CMA certification?
It takes
at least six years
to become a CMA as you will need to obtain a bachelor’s degree, gain two years of relevant work experience and pass the CMA exam. Your two years of work experience must be in a role that is relevant to the CMA certification such as accounting, finance, budgeting or auditing.
Which chromosome is responsible for autism?
An extra copy of a stretch of genes on
chromosome 22
may contribute to autism, according to the first study to carefully characterize a large group of individuals who carry this duplication
1
. The doubling can also lead to medical complications, such as vision or heart problems.
What genetic test should be offered to individuals with autism?
Exome sequencing
is a more detailed test that looks at the DNA that codes for genes. With this test, we can find the potential cause of autism about 10 to 30 percent of the time, with a greater chance for genetic findings for people who have intellectual disability.
How does karyotyping determine genetic disorders?
Clinical cytogeneticists analyze human karyotypes
to detect gross genetic changes
—anomalies involving several megabases or more of DNA. Karyotypes can reveal changes in chromosome number associated with aneuploid conditions, such as trisomy 21 (Down syndrome).
How do you test for mosaicism?
How is Mosaicism Diagnosed? The usual way in which mosaic Down syndrome is discovered is
through genetic testing of the baby’s blood
. Typically, 20 to 25 cells are examined. If some of the cells have trisomy 21 and some don’t, then the diagnosis of mosaicism is made.
What is a CMA certificate?
The CMA certification is
a professional credential offered by the Institute of Management Accountants
(IMA) that verifies a person’s knowledge in management accounting, corporate finance, and business management including strategic planning. Before becoming a CMA, an individual must meet certain requirements.
What is the resolution of CMA?
It is able to detect changes as small as
5-10Kb
in size – a resolution up to 1000 times higher than that of conventional karyotyping.
Can microarray detect Down syndrome?
Microarray testing will
find common chromosome conditions
, like Down syndrome, and can also find chromosome conditions that would not be seen with a karyotype. Microarray results take about two weeks.
How accurate is microarray testing?
Overall,
microarray was successful in 98.8% of cases
(4340 of 4391). The microarray analysis was performed on uncultured samples for 3860 (87.9%) of the 4391 participants.
What microarray means?
Listen to pronunciation
. (MY-kroh-uh-RAY) A laboratory tool used to analyze large numbers of genes or proteins at one time. In a microarray, biologic molecules such as DNA, RNA, or protein are placed in a pattern onto a surface such as a glass slide.
