URMC / Encyclopedia / Content Search Encyclopedia What Do You Know About Birth Defects? See how much you know about birth defects. Learn what you can do to lower your risk. 1. How many babies in the U.S. are born with birth defects? You didn't answer this question. You answered The correct answer is According to the March of Dimes, about 1 in 33 babies born each year in the U.S. has a birth defect. A. 1% B. 3% C. 5% D. 10% 2. When is an unborn baby most at risk of developing a birth defect? You didn't answer this question. You answered The correct answer is That's why experts advise that people planning to become pregnant visit their healthcare provider first. This is especially important for people with chronic health conditions. A. First trimester B. Second trimester C. Last trimester D. All 9 months 3. Which of these is a common birth defect? You didn't answer this question. You answered The correct answer is Cleft lip and cleft palate are birth defects of the mouth and lip. Cleft lip with or without cleft palate happens in about 1 in 1,000 births. These problems occur early in pregnancy. The sides of the lip and the roof of the mouth don’t join together as they should. A child can have cleft lip, cleft palate, or both. Most babies born with a cleft are otherwise healthy, with no other birth problems. Down syndrome is a genetic disorder that includes a combination of birth defects. These include intellectual problems and certain facial features. Often they also include heart defects, visual and hearing problems, and other health problems. These problems vary greatly in how severe they are. According to the CDC, Down syndrome affects about 1 in 700 babies. A. Down syndrome B. Heart abnormalities C. Spina bifida D. Cleft lip/cleft palate E. both A and D 4. Which of these habits of the pregnant person can be harmful to the fetus? You didn't answer this question. You answered The correct answer is Smoking raises the risk for miscarriage or damage to developing fetal organs. Alcohol and illegal drugs can raise the risk for fetal problems, miscarriage, and lifetime disabilities. A. Smoking B. Drinking alcohol C. Taking illegal drugs D. All of the above 5. A person who is pregnant or considering pregnancy should get a health checkup. Which of these vaccines should be up to date before they get pregnant because of the danger of the disease to the fetus? You didn't answer this question. You answered The correct answer is If a person is not immune to rubella, infection during pregnancy can cause a group of birth defects called the congenital rubella syndrome. Defects include decreased growth, intellectual problems, small head, congenital cataracts or cloudiness of the cornea, deafness, and heart defects. A. Tetanus B. Diphtheria-polio-tetanus C. Measles, mumps, and rubella D. Flu 6. Healthcare providers advise people to take 400 mcg of folic acid daily before they get pregnant and during pregnancy. What can this help prevent in the baby? You didn't answer this question. You answered The correct answer is Taking folic acid supplements may lower the risk for a group of conditions called neural tube defects by 50%. A. Respiratory distress B. Brain and spinal defects C. Blood disorders D. Learning disorders 7. Pregnant people should not handle cat litter to lower the risk of becoming infected with which of these? You didn't answer this question. You answered The correct answer is This infection can be passed to humans through cat feces. It can seriously harm an unborn baby. Infection during pregnancy can cause premature delivery, low birth weight, intellectual problems, muscle movement problems, small head, small eyes and blindness, seizures, hydrocephalus, and damage to the liver and blood-forming organs. A. Toxoplasmosis B. Streptococcus C. E. coli bacteria D. HIV 8. Which of these kinds of medicines can cause birth defects if taken when pregnant? You didn't answer this question. You answered The correct answer is Many prescription and over-the-counter medicines aren't safe for pregnant people to take. A pregnant person should check with their healthcare provider before taking any medicine or supplement. A. Prescription medicines B. Over-the-counter medicines C. Herbal remedies D. All of the above 9. During prenatal care, a healthcare provider may advise genetic screening tests for certain disorders. What is one thing that amniocentesis tests for? You didn't answer this question. You answered The correct answer is Amniocentesis often is done between the 15th and 20th week of pregnancy. Down syndrome is one of the most common genetic chromosome problems tested for. The number of conditions that can be diagnosed by amniocentesis increases every year. Amniocentesis can be used to diagnose many chromosome problems, DNA-gene problems, and enzyme and amino acid problems. In late pregnancy, amniocentesis can even help find out how mature the fetus' lungs are. A. Down syndrome B. Multiple sclerosis C. Cancer D. Attention deficit disorder 10. Extra or missing chromosomes trigger genetic birth defects. What factor greatly increases the risk for an abnormal number of chromosomes in the fetus? You didn't answer this question. You answered The correct answer is Pregnant people 35 and older have a greater risk of having a child with chromosome problems. This is especially true for trisomy 21, also known as Down syndrome. A. Older age of the birth parent B. Birthing parent's diet C. Non-birth parent's diet D. None of the above Your score was: Medical Reviewers: Adler, Liora C, MD Brennan, Dan, MD Wojcik, Stacey, MBA, BSN