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Birth Defects
Contemporary Nutrition; Preventing Birth Defects
| Question | Answer |
|---|---|
| What Percentage of Birth Defects are known to be genetic? | 15%-25% |
| What Percentage of Birth Defects are known to be Environmental | 10% |
| What Percentage of Birth Defects are not known what causes them? | 65%-75% |
| what purpose does an adequate amount of folic acid serve during periconceptional period of pregnancy? | It decreases the risk of normal tube defects by about 70% and also decreases the risk of cleft lip/palate, heart defects, and down syndrome. |
| director so growth of pregnancy increases the need for folate acid during pregnancy by how much? | 600 mcg, and in some women for generic reasons may have an even higher requirement. |
| what role does folic acid play? | Synthesis of DNA and the metabolism of amino acids. |
| what negative impact could low Iodide have during the first trimester of pregnancy? | It may lead to cretinism; a congenital form of hypothyroidism that leads to diminished physical and mental development - if left untreated. |
| what role could antioxidants play during pregnancy? | Antioxidants could minimize the damage caused by free radicals, and it may aid in the prevention of birth defects. |
| By what percentage does vitamin A requirements increase by during pregnancy? | 10% |
| during pregnancy, supplemental preformed vitamin A should not exceed by what amount? | 3000 mcg per day. |
| What are some of the safety concerns of caffeine used during pregnancy? | Decrease the mothers absorption of iron, and may reduce blood flow through the placenta. The fetus is unable to detoxify caffeine. The risk of miscarriage or delivering LBW infant. Heavy caffeine use during pregnancy may also lead to caff. withdrawal. |
| What concerns should pregnant women have with intake of Aspartame (NutraSweet and equal)? | If the mother has a disease known as phenylketonuria, high amounts of phenylalanine in maternal blood may disrupt fetal brain development. |
| Name three common health problems know to increase the risk of birth defects. | Obesity, High blood pressure, and uncontrolled diabetes. |
| Describe Fetal Alcohol Syndrome (FAS) | A group of irreversible physical and mental abnormalities in the infant that result from the mother's consuming alcohol during pregnancy. |
| Describe Fetal Alcohol Effects (FAE) | Hyperactivity, Attention deficit disorder, poor judgment, sleep disorders, and delayed learning as a result of prenatal exposure to alcohol. |
| What damage could mercury cause during pregnancy? | It could harm the nervous system of the fetus. |
| Name 3 fishes that the FDA warns pregnant women to avoid and the reason. | Swordfish, shark, king mackerel, and tile fish. Possible high Mercury contamination. |