Most healthy women receive two ultrasound scans during pregnancy . "The first is, ideally, in the first trimester to confirm the due date, and the second is at 18-22 weeks to confirm normal anatomy and the sex of the baby," explains Mendiol
Most healthy women receive two ultrasound scans during pregnancy . "The first is, ideally, in the first trimester to confirm the due date, and the second is at 18-22 weeks to confirm normal anatomy and the sex of the baby," explains Mendiola.
The American College of Obstetricians and Gynecologists (ACOG) says that women should get at least one sonogram in the second trimester, between weeks 18 and 22 of pregnancy. You may also receive an additional ultrasound in the first trimester, before your 14th week of pregnancy.
A second ultrasound (or third) ultrasound is usually done at 18 to 20 weeks to review the baby's anatomy and rule out abnormalities. It's also when you can find out the gender, if you care to know.
As with many tests related to pregnancy, there is some disparity among medical centers about how often a woman should have ultrasounds, especially late in her pregnancy. During the third trimester, some offices perform ultrasounds every two weeks, while others (like ours) perform one every three to four weeks .
Most women get an ultrasound in their second trimester at 18 to 20 weeks of pregnancy . Some also get a first-trimester ultrasound (also called an early ultrasound) before 14 weeks of pregnancy. The number of ultrasounds and timing may be different for women with certain health conditions like as asthma and obesity.
A healthy pregnancy typically requires two ultrasounds : one around 11 to 14 weeks and the other at about 18 to 20 weeks. If any abnormalities or complications are detected during either of the routine ultrasounds, you might need more.
During the third trimester of pregnancy, ultrasound is commonly performed in patients that present both asymptomatically or with symptoms . There are currently no major guidelines or protocols to standardize the use of ultrasound at this stage of pregnancy.
You probably won't have a 32 weeks pregnant ultrasound , though—unless you have pregnancy complications or there's something specific your doctor wants to check. For example, for women who are 32 weeks pregnant with twins, the doctor might want to perform extra monitoring from week 30 on.
In general, a healthy pregnancy should involve two ultrasounds : one in the first trimester and another mid-way through the second trimester. However, each pregnancy is different and you may require more ultrasounds based on factors including age, weight, and medical histor
Dec. 2, 2004 -- Having multiple ultrasound examinations during pregnancy is unlikely to cause any lasting harm to the developing fetus , according to a new study that confirms the long-term safety of the commonly used procedur
As pregnancy progresses, the accuracy of an ultrasound for predicting due dates decreases. Between 18 and 28 weeks of gestation, the margin of error increases to plus or minus two weeks. After 28 weeks, the ultrasound may be off by three weeks or more in predicting a due date