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PFSI008 How the Test Is Done CELL-FREE DNA PRENATAL SCREENING TEST What is it? The cell-free DNA prenatal screening test (also called “cfDNA test”) screens for certain conditions caused by an abnormal number of chromosomes. It does not test for all types of chromosomal disorders. Screening tests are used to estimate whether your baby is at higher risk or lower risk of having a certain condition. Diagnostic tests can give a definite answer about whether the baby has a certain condition. These tests include amniocentesis or chorionic villus sampling (CVS). = maternal ...


2.
June 2019

FAQ128, June 2019

What is thyroid disease? The thyroid gland is located at the base of your neck in front of your trachea (or windpipe). The thyroid gland makes, stores, and releases two hormones—T4 (thyroxine) and T3 (triiodothyronine). Certain disorders can cause the thyroid gland to make too much or too little hormone. Women at risk of thyroid disease include those who have or have had an autoimmune disease (such as diabetes mellitus).


3.
April 2019

FAQ096, April 2019

What is cancer? Normal cells in the body grow, divide, and are replaced on a routine basis. Sometimes, cells divide abnormally and begin to grow out of control. These cells may form growths or tumors.


4.
February 2019

FAQ097, February 2019

What is endometrial cancer? Endometrial cancer is cancer of the endometrium, which is the lining of the uterus. It is the most common type of cancer that affects the female reproductive organs. The most common type of endometrial cancer (type 1) grows slowly. It most often is found only inside the uterus. Type 2 is less common. It grows more rapidly and tends to spread to other parts of the body. Malignant tumors can invade and destroy nearby healthy tissues and organs. Cancer cells also can spread (or metastasize) to other parts of the body and form new tumors.


FAQ164, January 2019

What is prenatal genetic testing? Prenatal genetic testing gives parents-to-be information about whether their fetus has certain genetic disorders.


6.
December 2018

FAQ163, December 2018

What is cancer of the cervix? A woman’s cervix (the opening of the uterus at the top of the vagina) is covered by a thin layer of tissue made up of cells. Healthy cells grow, divide, and are replaced as needed. Cancer of the cervix occurs when these cells change. Cancer cells divide more rapidly. They may grow into deeper cell layers or spread to other organs. The cancer cells eventually form a mass of tissue called a tumor.


FAQ509, December 2018

What is cancer? Normal cells in the body grow, divide, and are replaced on a routine basis. Sometimes, cells divide abnormally and begin to grow out of control. These cells may form growths or tumors. Tumors can be benign (not cancer) or malignant (cancer). Benign tumors do not spread to other body tissues. Cancer tumors can invade and destroy nearby healthy tissues, bones, and organs. Cancer cells also can spread to other parts of the body and form new cancerous areas.


8.
December 2018

FAQ179, December 2018

Pregnancy What is carrier screening? What is a carrier? What are the chances of having a child with a genetic disorder? How is carrier screening done? When can carrier screening be done? Do I have to have carrier screening? What carrier screening tests are available? Who should have carrier screening? What is targeted carrier screening? What is expanded carrier screening? Is one approach better than the other? What choices do I have if my partner and I are carriers of a genetic disorder? How accurate is carrier screening? Are results...


FAQ098, December 2018

Why may special tests be needed during pregnancy? Special testing during pregnancy most often is done when there is an increased risk of pregnancy complications or stillbirth. This can occur in the following situations: High-risk pregnancy (a woman has had complications in a previous pregnancy or has a pre-existing health condition such as diabetes mellitus or heart disease) Problems during pregnancy, such as fetal growth problems, Rh sensitization, or high blood pressure Decreased movement of the fetus Pregnancy that goes past 42 weeks (postterm pregnancy) Multiple pregnancy with certa...


FAQ162, November 2018

What are menopause and perimenopause? Menopause is the time when a woman’s menstrual periods stop permanently. Menopause is confirmed after 1 year of no periods. The average age of menopause is 51 years, but the normal range is 45 years to 55 years.


American College of Obstetricians and Gynecologists
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