16 Weeks Pregnancy Ultrasound

Submitted by Nick on January 18, 2012

Week 13 to 16 of pregnancy is the first month of the second trimester. Ultrasounds or sonogram is an interesting experience for every pregnant mother. After the initial ultrasounds to check the baby’s heart beat, most moms-to-be have a standard ultrasound between 16 to 20 weeks of pregnancy. The ultrasound or sonogram is a non invasive diagnostic procedure. This test employs the use of sound of waves to create visual images of the baby, uterus, placenta and other organs in the pelvic region. This test provides the health care practitioner with valuable information pertaining to the mother and child’s progress.


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16 weeks pregnant ultrasound or 16 week fetus ultrasound is required only if the health practitioner suggests so. Most low risk pregnancy cases are not suggested so and ultrasounds must be ideally recommended only when there is a specific medical reason. Ultrasounds are beneficial in providing valuable information such as:

  • To confirm the baby’s location
  • The check the baby’s heartbeat
  • To measure the size of the baby
  • To assess the level of amniotic fluid in the uterus
  • To check for any possible physical abnormalities
  • To determine the gender of the child
  • To check the location of the placenta
  • To know if there is more than one baby, if not detected previously.

Important milestones during this trimester are formation of ears, growth of nails, bladder functions and coordinated limb movements. Sensing movements is also possible during 16 -20 weeks especially when carrying twins or multiples. 16 weeks pregnant ultrasounds for twins may indicate reflexive movements as you feel the babies moving.

With growing interest in getting a better look at the growing baby 3D ultrasound and 4D ultrasound tests are finding takers especially among pregnant women. 16 weeks pregnant ultrasound 4D is ideally done for gender determination. It is advisable to have a 4D ultrasound between 28-30 weeks of pregnancy to get a better look at the growth of the baby. It is important to note that 4D tests create a high quality image and the energy level used to create such images and the impact of such energy use on fetal growth is a point of debate. Ultrasounds must be done only if suggested by the health practitioner. While 2D tests can detect an abnormality a 4D test may confirm it.

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