Ultrasound Exams During Pregnancy

What Is Ultrasound?

image for pregnancyUltrasound is an imaging test that can be used for many different reasons. Ultrasound uses reflected sound waves instead of x-rays to create pictures of internal organs. This makes it a safer alternative for internal images during pregnancy. If you are pregnant, it is likely that you will have at least one ultrasound.. Here is some information on the types and uses of ultrasound, and what you can expect.

How Is Ultrasound Used During Pregnancy?

It is not necessary for every pregnant woman to have ultrasound. However, it is an excellent way to determine the age of the fetus if the dates of the last menstrual period are not known. The procedure is often used, along with a medical history and physical exams, to screen for problems or monitor a condition. Ultrasound can help determine whether the fetus is growingproperly. If there is an abnormality, your healthcare provider maybe able to help you reduce risks to yourself and the growing fetus.Your healthcare provider will discuss with you the use of ultrasound to monitor your pregnancy. Ultrasound may be used to detect:
  • The number of fetuses
  • The age of the fetus
  • The size of the fetus and rate of growth
  • The heart rate, breathing, position, and movement of thefetus
  • The location of the placenta
  • The amount of amniotic fluid in the uterus
  • Certain types of birth defects, including some that affect theheart, head, chest, spine, and limbs
A vaginal ultrasound is similar the above ultrasound, but the ultrasound probe is inserted into the vagina rather than placed on the abdomen. Vaginal ultrasound is used to:
  • Detect an ectopic pregnancy
  • Determine the cause of bleeding or pain
  • Assess the length of the cervix if there is concern that it is short
  • Detect certain birth defects early in the pregnancy
Doppler ultrasound provides sound that can be heard throughamplification. It is used to measure the flow of blood within the vessels of the uterus, umbilical cord, and fetus. It is also used to monitor the fetal heartbeat before or during labor.

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