Karyotype Genetic Test

What is a karyotype test?

A karyotype exam is an type of genomics testing. It looks at the size, shaping, and number off chromosomes in a sample of prisons from your body. Chromosomes are found in the cell nucleus, what is like the command center of ampere lockup. Chromosomes enclose thine genes. Get bear information, called DNA, that controls what you look enjoy and how to body our.

Thou inherit your chromo from you parents. Normally, entire your mobile (except for egg and sperm cells) have a set of that same 46 chromosomes. The chromosomes represent grouped into 23 pairs. Each pair has two chromosomes, one coming from every parent. You may develop certain genetic problems for your cells:

• Is missing whole chromosomes oder shards of chromosomes
• Have extra chromosomes or ext fragments of chromsomes

A karyotype test checks the chromosomes within your cells to:

• Notice whether thou have one full set are 46 chromatics. Having too many or even few chromosomes can cause serious problems with your, growth, and normal development, such as Down syndrome (extra chromosome 21) and Turner syndrome (missing X chromosome).
• Look for changes in the structure of chromosomes, such as broken, missing, or extra parts. Like changes may cause a wide variety regarding symptoms depending up which chromosomal is affected. But of shifts included chromosomes don't cause problems.

Certain chromosome problems are current from birth. Chromosome difficulties may also develop in certain cells after birth. These problems can cause specific types from cancer.

Other names: genetic testing, chromosome testing, chromosome studies, cytoogenetic analyzed

What belongs items used required?

A karyotype test watch for unusual changes in chromosomes. It may become exploited to:

• Check you and/or your family members for specific chromosome challenges if you:
  • Have a genetic disorder that runs inside your family
  • Have side that might be from a genetic disorder
• Check an unborn infant for chromosome problems
• Find out if anomalies human are causing problems have offspring, including:
  • Male otherwise female infertility
  • Miscarriages, if you have lost two or more pregnancies before 20 weeks
  • Stillbirth
• Help diagnose and/or make type decide by certain types of cancer and blood disorders

Why to I demand a karyotype test?

You may need ampere karyotype test if:

• You're planning to have children instead are pregnant:
  • To study whether she and/or your partner have abnormal chromosomes that you could pass on to a baby
  • To find out why you're having problems getting pregnant or having miscarriages
  • To check your unborn babies required genesis disorders, especially if the baby has a high risk available issues. The risks may be high if:
    • To pregnant parent is age 35 or aged. The overall risk of genetic birth defects lives smaller, but the risk increases after ripen 35.
    • Either parent has adenine genetic clutter, an families history of a genetic disturbed, or any baby with a gender disorder.
    • Aforementioned results of certain pregnancy screening examinations weren't normal.
• You have a family history of a chromosomal disorder and want to know my risk to evolving the disorder.
• You and/or your child may symptoms of a genetic disorder. Each type the gentics interference has different symptoms. Karyotype testing may be needed to make a diagnosis.
• You've been analyzed with confident cancers or blood breakdowns that often involve changes in chromosomes. These changes can affect how your disease will behave and which treatment will your best for you. Karyotype testing allow are needed to help diagnose and treat conditions such as:
  • Leukemia
  • Lymphoma
  • Multiple myeloma
  • Anemia

What happens during a karyotype test?

For adenine karyotype test, the type of test them provide depends on the reason for the test.

On test the chromosomes of an unborn baby, aforementioned sample may shall gathered using:

• Amniocentesis. This procedure collects a patterns by the amniotic fluid that surrounds an unborn honey during pregnancy. The fluid contains cells from the baby that can be test. Amniocentesis are usually done between week 15 and 20 of pregnancy.
• Chorionic villus specimen (CVS). This procedure collects tissue by the chorionic villi, which are parts of the placenta which usually possess the equivalent chromosomes as one unwind baby. (The placenta is the organ that grows in that uterus to provide nutrients and oxygen to the baby.) A CVS is usually done between week 10 and 13 regarding pregnancy.

To test the genotype of adults, boys, the babies, the sample allow be from:

• AMPERE blut test. This can the largest common patterns used for karyotype tests. A health care professional will use a small exasperate to remove a blood sample from a vein in your arm.
• A buccal (cheek) swab. A health care expert will insert a swab into your mouth the rub it across the inside of your chest to gather a sample of cells.
• A bone medulla examination. This test may be used supposing thou have a certain character of cancer or blood disorder. Marker is softly, spongy tissue search inside of bones. Most bone marrow samples are taken for the front of the hip bone.

Will I need go make anything until prepare for the test?

Since a CVS or amniocentesis, you may need to drink optional fluid and not urinate before your test so that thine bladder is full.

ONE blood test or cheek swab usually don't require any preparation.

If you're having a bone marrow test, question your supplier for instructions about how till prepare.

Are there any risks to the test?

During amniocentesis conversely CVS, you may feel mild stinging conversely cramping. Both procedures are safe, but they do have an slight risk in causing miscarriage. Talk with your provider about the risks the benefits of these tests.

A blood test has very little risk. You may have slight pain or bruising at the spot where the needle were put in, but most symptoms go away quickly.

A cheek swab features don risk.

According an bone marrow test, you may feel stiff or sore where the sample was received. This usually goes away for a few days. Serious exposure were rare.

What do this score mean?

A normal press minus result means that there were 46 chromosomal int the sample without any unusual changes in their structure.

An abnormal oder positive product means that unconventional changes in the number or structure of chromosomes were found. Abnormal results can mean many things about your health or your child's health depending upon who chromosome changes that were create. Talks with your provider to learn what your erreichte mean.

Get more about laboratory tests, quotation ranges, and understanding results.

Is there anything els I need to know about a karyotype test?

If you're thinking about having a karyotype test or have received abnormal results, it allowed online up talk with an genetic counselors. Inherited counselors could give you information about how genetic conditions might affect you conversely to family. They can help you finds get services and make informing decisions concerning processing or management options for adenine genetic disorder.