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Prenatal care: Second-trimester visits
Pregnancy and prenatal care go hand in hand. During the second trimester, prenatal care includes routine lab tests and measurements of your baby's growth. You may consider prenatal testing, too.
By Mayo Clinic staffPrenatal care is an important part of a healthy pregnancy. As your pregnancy progresses, you'll continue to visit your health care provider regularly — probably once a month throughout the second trimester. Here's what to expect at your second-trimester prenatal appointments.
Review the basics
Your health care provider will check your blood pressure and weight at every visit. Mention any signs or symptoms you've been experiencing. Then it's time for your baby to take center stage. Your health care provider may:
- Track your baby's growth. By measuring your abdomen from the top of your uterus to your pubic bone, your health care provider can gauge your baby's growth. This measurement in centimeters often equals the number of weeks of pregnancy.
- Listen to your baby's heartbeat. At second-trimester visits, you may listen to your baby's heartbeat using a Doppler instrument or occasionally a modified stethoscope. The Doppler instrument detects motion and conveys it as sound, which allows you to "hear" the baby's movement — even though the movement doesn't actually make noise.
- Assess fetal movement. Tell your health care provider when you begin noticing flutters or kicks. This usually happens at about 20 weeks — or perhaps earlier if you've been pregnant before.
Expect routine lab tests
Your health care provider may want to test a urine sample for sugar and protein. You may need blood tests to check for low iron levels or gestational diabetes, a type of diabetes that can develop during pregnancy. If you have Rh negative blood, you may be tested for Rh antibodies. These antibodies may be harmful if your baby has Rh positive blood.
Next page(1 of 2)
- Lockwood C, et al. The initial prenatal assessment and routine prenatal care. http://www.uptodate.com/home/index.html. Accessed Feb. 17, 2010.
- You and your baby: Prenatal care, labor and delivery, and postpartum care. American Congress of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/ab005.cfm. Accessed Feb. 19, 2010.
- Cunningham FG, et al. Prenatal care. In: Cunningham FG, et al. Williams Obstetrics. 22nd ed. New York, N.Y.: McGraw-Hill Companies Inc.; 2005. http://www.accessmedicine.com/content.aspx?aID=6052187. Accessed Feb. 19, 2010.
- Harms RW (expert opinion). Mayo Clinic, Rochester, Minn. March 3, 2010.
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