FISH for Aneuploidy - 9 Markers Chr 9/13/15/16/18/21/22/X/Y (Prenatal)
The FISH for Aneuploidy with 9 markers is a specialized prenatal diagnostic test that evaluates the presence of an abnormal number of specific chromosomes in a fetus. It examines chromosomes 9, 13, 15, 16, 18, 21, 22, X, and Y. This test is a crucial part of prenatal diagnostics as it helps in the early detection of chromosomal disorders, which may impact the development and health of the fetus.
FISH, or Fluorescence In Situ Hybridization, is a technique that uses fluorescent probes to visualize and count specific DNA sequences on chromosomes. By examining nine different chromosomes, this test can detect a variety of chromosomal abnormalities. For example, abnormalities in chromosome 21 are associated with Down syndrome, and anomalies in chromosomes X and Y can lead to sex-linked disorders.
Test NameFISH for Aneuploidy - 9 Markers Chr 9/13/15/16/18/21/22/X/Y (Prenatal)
Sample TypeAmniotic fluid or chorionic villus sample (CVS)
Preparations RequiredThere are no specific preparations required for the test. However, it is important to follow the doctor’s instructions regarding the amniocentesis or CVS procedures.
Report Time5 days
Why is the FISH for Aneuploidy with 9 markers test important?
This test is vital for detecting chromosomal abnormalities in the fetus, specifically for chromosomes 9, 13, 15, 16, 18, 21, 22, X, and Y. Early detection can provide crucial information regarding potential chromosomal disorders and help in planning necessary interventions or care.
How is the test performed?
This test requires a sample of amniotic fluid or chorionic villi, obtained through amniocentesis or CVS. In the lab, fluorescent probes are used to bind to specific chromosomes in the sample, and a microscope is used for visualization and counting.
Home Sample Collection Process
1
Book your convenient slot
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Sample Collection by Phlebotomist
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Reporting of the sample at lab
4
Download Reports
Frequently Asked Questions
This test is usually recommended during the second trimester of pregnancy. It might be suggested earlier in cases of high risk for chromosomal abnormalities.
Abnormal results indicate an abnormal number of chromosomes, which might be associated with a variety of chromosomal disorders such as Down syndrome, Trisomy 13, or sex-linked disorders.
The test itself does not pose risks, but the procedures for obtaining the sample, such as amniocentesis or CVS, carry a small risk of infection or miscarriage.
If test results are abnormal, it is important to consult your doctor to understand the implications and discuss the available options and steps for managing the pregnancy.
FISH is highly accurate but is often used in conjunction with other genetic tests for a comprehensive assessment.
No, lifestyle or medication does not affect the number of chromosomes in fetal cells.
Yes, genetic counseling is strongly recommended in order to understand the implications of abnormal results and make informed decisions regarding the pregnancy.
Yes, by analyzing the X and Y chromosomes, the test can determine the gender of the baby.
This test is not routine and is usually recommended for high-risk pregnancies where there is a higher chance of chromosomal abnormalities.
FISH is a diagnostic test that provides definite information about the number of specific chromosomes, unlike screening tests which only indicate the likelihood of a chromosomal abnormality.
No, this test specifically targets chromosomes 9, 13, 15, 16, 18, 21, 22, X, and Y. It does not provide information on structural abnormalities or other chromosomes.
Yes, alternatives include karyotyping, microarray analysis, and non-invasive prenatal testing (NIPT).
FISH can only analyze specific chromosomes and does not detect other genetic disorders or structural abnormalities. Also, it requires invasive procedures for sample collection, which carry risks.
The FISH for Aneuploidy with 9 markers is a significant diagnostic tool in prenatal care, providing expecting parents with valuable information about potential chromosomal disorders in their unborn child. This information is essential in helping to plan for any necessary interventions or specialized care that the child may need after birth. It is crucial to discuss the options for prenatal testing with your doctor to ensure that you are making the best choices for the health of your child. Through informed decisions and proactive care, you can work towards ensuring a healthier and more secure future for your child.
FISH for Aneuploidy - 9 markers Chr 9/13/15/16/18/21/22/X/Y (Prenatal)
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