Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Birth Defects Testing
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What is the first-trimester screening for birth defects? Near the end of the first 3 months of pregnancy (first trimester), a woman can have two types of tests to show the chance that her baby has a birth defect. When the results are combined, these tests are known as the first-trimester screening. They also may be...
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What is the triple or quad screening? The triple screening measures the amounts of three substances in a pregnant woman's blood: alpha-fetoprotein (AFP), human chorionic gonadotropin (hCG), and estriol (uE3). When a test for the hormone inhibin A is added, it's called a quad screening. These tests are also called...
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Routine exams At each prenatal visit during your first-trimester, you'll be weighed and have your blood pressure checked. Your urine may also be checked for bacteria, protein, or sugar. Your doctor will monitor your fetus's growth by measuring the height of your uterus (fundal height) above your pubic bone. Using a...
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Routine exams and tests At each prenatal visit, you can expect to be weighed. Your blood pressure will be checked. Your urine may also be checked for bacteria, protein, or sugar. Your doctor or midwife will track your baby's growth and position. To do this, he or she will measure the size of your uterus (fundal height)...
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What are birth defects tests? Birth defects tests are done during pregnancy to look for possible problems with the baby (fetus). Birth defects develop when something is wrong with genes or chromosomes, an organ, or body chemistry. A birth defect may have only a mild impact on a child's life, or it can have a major...