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The results of genetic tests are not always clear, making it difficult to understand, and a person must have a clear understanding of the test before and after it is performed.
FREMONT, CA: Genetic testing is a type of diagnostic test that looks for changes or mutations in the DNA or deoxyribonucleic acid, a chemical database containing information and instruction for the body's functions. The test is highly efficient at providing information for diagnosing, treating, and preventing illness and determining any health anomalies that may have been passed down from parents to children.
Genes are essential components of DNA that transport the information required to make proteins, whereas chromosomes are minute thread-like structures in cells containing DNA and proteins. Proteins are the vital components that carry out the majority of the work in the cell. The genetic testing process primarily aids in the search for changes in the amount and activity level of proteins, which directly facilitates the interpretation of changes in the DNA.
How Is a Genetic Testing Done?
Genetic testing is typically performed as part of a genetic consultation by a medical geneticist, primary care doctor, specialist, or nurse practitioner.
Before taking the test, the individual is informed about the advantages, constraints, and possible risks of the test results, and approval is obtained, commonly known as informed consent.
Even though genetic testing is typically performed on a cheek swab or blood sample, it can also be conducted with saliva, skin, hair, amniotic fluid (the fluid that surrounds a fetus during pregnancy), or other tissue samples. The gathered sample is sent to a laboratory, where skilled professionals look for specific changes in chromosomes, DNA, or proteins associated with the possible disorder. The laboratory sends the test reports in writing to the patient's doctor, genetic counselor, or the patient directly when requested.
What Is the Significance of a Genetic Testing?
Genetic testing, based on the situation, can be a critical step. It not only assists the doctor in making diagnoses or monitoring a specific disorder, but it also provides a person with more relative information for making informed decisions about their and family's health.
It also aids in detecting genetic disorders before or shortly after birth, allowing for the most effective treatment options to be available as soon as possible. Some test results can also assist people in making informed decisions about having children.