Genetic testing should be done after genetic counseling. In the course of the discussion, it will be determined whether such an experiment is necessary or not. In general, if genetic testing is necessary for an individual or a family, it is better to do it as soon as possible. For example, if the couple has visited before marriage, doing it at that time has priority over doing it after marriage. On the other hand, despite being informed about all aspects, some families sometimes postpone the investigations according to their opinion and choice until after marriage. However, if necessary, genetic tests must be done before pregnancy. If a family has not done these tests at the mentioned times for any reason, it is still better to do these tests as soon as possible (even in the early weeks of pregnancy).

Before trying to get pregnant, Specialist genetic counseling is recommended with the documents of sick people in the presence of couples. First of all, we should know that mental retardation has different causes, these causes are divided into two main groups, genetic and non-genetic, and their genetic causes are very diverse. It has a family in the affected person. As a result, genetic counseling is recommended before trying to get pregnant. In this consultation, after drawing a genealogy and taking a detailed history, the analysis of the genealogy information is done by a geneticist, and the probability of recurrence of this disease in the family is calculated based on the analysis and analysis of the genealogy, and since the causes of this The disease is different, the necessary genetic tests in the affected person are described in the order of importance, mentioning their benefits and limitations, and the appropriate steps based on the test results for the couple. So that the family can take action if they wish

Specialist genetic counseling is recommended with the patient's documents in hand. In this consultation, after drawing the genealogy, a detailed medical history is taken from the couple who are planning to get married and people with RP, then the analysis of the genealogy information is done by a genetic specialist, and based on that, the basic risk in family marriage ( caused by the common genes of the couple) and the probability of recurrence of the RP disease in the family is calculated, then the available solutions and tests are described with the description of the benefits and limitations for having children who do not have the same disease as the people in the family. It is worth mentioning that, if the family wishes, check genes related to hereditary eye diseases in affected people using the NGS technique. It can be done at HopeGene Institute, based on its results, solutions and next steps are presented with mention of benefits and limitations

Yes. In family marriages, genetic counseling is recommended before marriage. In this consultation, after drawing the genealogy and taking a detailed medical history of the couple and the affected person, and checking the answers to the results of the tests performed on individuals and questions about other hereditary diseases in the family, the analysis and celebration of the genealogy is done. Based on that, both the basic risk in family marriage (caused by the shared genes of the couple) and the risk of recurrence of hereditary hearing loss in your children and your future spouse will be specifically explained, and the necessary information about the available tests will be given. Genealogy analysis is given with an explanation of the benefits and limitations of having healthy children. (It should be noted that deafness has various causes, but more than half of the cases are genetic).

Because if there is an affected person in a family, the priority is to carry out a genetic test to check the affected person, it is recommended to prepare a blood sample from your child in special tubes (EDTA tube) and deliver it to the genetics laboratory for the DNA bank. Let his sample be available whenever you are ready to do the test.

Despite its high accuracy compared to other methods, this examination is not a diagnostic test and is classified as a screening test. Another important point is that this review covers only some chromosomes.

To know whether a person or a family needs to do a genetic test or not, they need to be consulted first. Genetic counseling must be done by a genetics specialist or a doctor trained and licensed for genetic counseling. It is important to remember that counseling before and after genetic testing is necessary.

There are different types of genetic tests. Some tests are based on chromosomal studies and some are based on DNA studies. For example, a screening test for Down's or Turner's syndrome or trisomy 18 and the like is a chromosomal examination. However, the study of monogenic diseases such as thalassemia and hemophilia or Duchenne's disease and the genetic causes of deafness and blindness and the like require DNA examination.

Any kind of medical test that is done to investigate a person's condition in terms of infection or probability of infection or whether he is a carrier in terms of diseases and genetic and hereditary conditions is called a genetic test.

No, there is no need to fast to perform any of the genetic tests.

These tests can be done on different samples. Some are performed on blood samples, some on tissue samples, and some on amniotic fluid samples or placental villi of the fetus and any nucleated cell in the body of a living or non-living person, fetus, etc.