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What Is The Earliest Week That I Can Have Genetic Testing For Downs
Prenatal testing for genetic problems may be done before or after conception. Testing for spina bifida or Down syndrome is done after a pregnancy is established. Besides the couples listed above, counseling and diagnosis are also recommended for mothers over the age of 35, and those who have received abnormal screening test results, such as alpha-fetoprotein (AFP). For more information about the alpha-fetoprotein test, and when and why you might have it, see alpha-fetoprotein. For those who may be at risk, genetic counseling and prenatal diagnosis are used to help ...Read more
Yes: It can be detected during the pregnancy, but by the mean of the obstetrical ultrasonography and depends on the skills of the technician performing the procedure. The other screening tests performed during pregnancy, may predict some of the chromosomal disorders, associated with holoprosencephaly, such as trisomy 13. ...Read moreSee 1 more doctor answer
3 early MCs & chromosomal abnrml in all fetuses (no birth), is karyotyping of parents the only genetic testing tht can be done? Names of any other pls
It's the starting pt: Parent study comes first.A person can appear normal if they carry all the proper chromosome material but with part belonging to one chromosome swapped with another.(ie, part of a #15 is on #21) When fertilization occurs, the fetus may get part of the mistake and not the other & be defective.Some of these have a partial chance of normal birth, some would always end up a defect.See a geneticist. ...Read more
Sure: Genetic testing can be wrong due to many possible problems: mixed up specimens from someone else; degraded dna that can't be analyzed; lab errors in procedures; errors in reporting the results. You should always check on the lab and go over the diagnoses with a physician who knows you and as appropriate with a genetic counselor. A lot of this testing is highly automated, but can still have error. ...Read more
Depends: It really depends. If your affected family member(s) have already had detailed testing, testing for you can cost just a few hundred dollars, depending on what kind of syndrome. If you are "fishing" for a diagnosis, this can costs many thousands of dollars. Generally genetic tests should be done only if there is a specific question that you and your doctor are trying to answer. ...Read more
Depends on situation: Some genetic tests are detailed, specific and allow you to know what to expect from the patient in the future. Chromosome studies, fish probes for diagnostic markers, etc provide information early that allows early detection and treatment of silent problems.Other studies are less specific and only suggest an increased risk for some condition.Value is in the eye of the person seeking information. ...Read more
Molecular genetic: testing & a Fragile X Syndrome probe are recommended for people of any age with developmental delays, Intellectual Disability &/or Autistic Spectrum Disorder. People at risk of transmitting mutant genes because of ethnicity, family history or consanguity need pre-pregnancy testing. Chromosomal array on amniotic fluid is offered to women with high risk of fetal Down Syndrome & other aneuploidies. ...Read more
Nonspecific question: There are dozens of tests that might be labeled as relating to genetic disease. Most look at a specific issue (genetic problem) and test blood or tissue for evidence that the patient has a genetic profile that shows they do or don't have the condition or are a carrier. ...Read more
Vast issue: Genetic testing can help with diagnosis of tumors, indicate optimal treatment of tumors and other disease, help in prognostication, risk of development of some diseases, e.g. Colon cancer. Genetic testing is essential for counseling in inherited disorders, e.g., tay sachs disease. Genetic testing may be used for diagnosing diseases in the fetus and the list is increasing rapidly. ...Read more
Autonomy: Today, most (not all) people and most governments believe that if a person will suffer from serious disease that is determined by the genes they carry, they need to know so that they can make their own decisions -- and that mothers should make the decisions for their unborn children up to and including abortion. This is the principal "implication" in our often-cruel world. Best wishes. ...Read more
Question missing?: Your question appears incomplete - try again. ...Read more
Genetic counselor: You should talk with a genetic counselor regarding the specific disease(s) you are worried about. The pros include being able to plan for long-term, reproductive issues, and maybe getting into a clinical trial. The cons include depression or worse with a positive test, not knowing when the disease will strike, and possibly affecting your ability to be insured (even it shouldn't). ...Read more
Be specific: If a close relative has a known genetic disease, you have a duty yourself to know whether you carry it. If you are from a population with a lot of sickle cell disease, you owe it to yourself and the person with whom you plan to have children to know whether you have the trait. That's all you'll want. Good luck. ...Read more
Still lots to learn: I believe genetic testing will be an extremely important and standard tool in the future. There is evidence that tests like this can tell whether you are more or less susceptible to many diseases. That said, genetics alone do not determine health risks; diet and lifestyle often play a larger role; fortunately, 23andme acknowledges this & discusses what is known about this. Please see my comment:. ...Read more
Many: What do you do with the results? Do you abort a child because they have a genetic disorder that will decrease survival -- but not kill them? If you know someone has a genetic disease, do you allow them to get married? Have children? Do you offer treatments (organ transplant) to someone you know will have. ...Read more
No: Unfortunately having a normal serum screen does not mean that a fetus has no genetic abnormalities. Even genetic amniocentesis will not test for all conditions a baby might have at birth. These tests combined with an expert ultrasound around 18-22 weeks can help rule out congenital anomalies and genetic disorders. But testing can't tell parents with 100% certainty if their child will be normal. ...Read moreSee 2 more doctor answers
From a medical standpoint, "genetic" refers to the potential heritability of various medical conditions. While some conditions are inevitable (at some point in one's life) as a consequence of simple genetic heritability (eg huntington's disease), a large number of medical conditions (including all behaviorial health disorders) are the expressed final pathway of a ...Read more
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