Ultrasound - Fetal Neck Measurements

This test uses sound waves to obtain measurements of your unborn baby to check for chromosomal abnormalities (i.e., Down syndrome) or heart problems.

This test uses sound waves to obtain measurements of your unborn baby to check for chromosomal abnormalities (i.e., Down syndrome) or heart problems.

An obstetric ultrasound uses sound waves to create detailed images of your uterus and unborn baby.

  • This ultrasound measures the back of an unborn baby's neck to check for a sign of a chromosomal abnormality, such as Down's syndrome.
  • The back of the neck swells if there are problems with an unborn baby's circulation. This can happen when there are problems with the heart.

Your healthcare provider may order this ultrasound during the first 3 months of your pregnancy to screen your unborn baby for:

  • Chromosomal abnormalities (such as Down syndrome)
  • Congenital heart defects

Here are some things you should know before having an ultrasound.

  • You will be asked to drink water before the test. Having a full bladder will help make the uterus and unborn baby more visible.
  • Your healthcare provider can tell you other things you need to do to prepare.
  • You may want to wear a loose two-piece outfit, so you can remove just the bottom for the exam.
  • Ultrasounds are usually painless.
  • The exam usually takes 15 to 20 minutes.
  • Usually, only one ultrasound is needed for each pregnancy.

In some cases, a technician will move a probe over your abdomen.

  • The probe will be covered with a clear gel.
  • The gel helps send the sound waves to the computer.
  • Sometimes, the end of the probe will need to be put into your vagina to get better pictures.

The costs for this test include the charge for the test (facility charge) and physician charges (for performing or interpreting the test). You may get separate bills from the facility and the physician's office.

What should I ask my healthcare provider before having this test?

  • Is there any special preparation for the test? (If so, get clear instructions on what you need to do.
  • Why are you ordering this test? Will the test results change how we take care of my pregnancy? If not, do I need the test?

Source UHC.com

Also known as:

Uterus Ultrasound
Ultrasound - Fetal Neck Measurements
Pregnancy Ultrasound
Pregnancy Evaluation
Fetal Measurement

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