Pregnancy Ultrasound Scan: Purpose, Procedure & Preparation

Pregnancy Ultrasound Scan

Ultrasound is basically a method that uses sound waves to study the internal parts of the body and in the case of a pregnant women, her womb to check the fetus. High-frequency sound waves of about 20,000 Hz and above, which are past the range of normal hearing are beamed to the area that needs to be studied and the returning echoes are recorded there by. Pregnancy Ultrasound is an important step that the expectant mother needs to go through, to ensure the safety of the baby in the womb.

The technical term for ultrasound testing and recording is ‘sonography’ and it is this term that is used widely in gynecology and obstetrics. Pregnancy Ultrasound determines the well being of the baby, its development and so on.

Pregnancy is an important stage in any women’s life and ensuring that the baby is growing properly, a Pregnancy Ultrasound needs to be carried out at intervals. In the technique, a high frequency sound wave is used to produce an image of the baby inside the woman’s womb, which allows the evaluation of the baby, its organs, and movements and so on. Ultrasound during pregnancy may be done either by transabdominal or transvaginal. In transabdominal, an instrument called a transducer is passed over the abdomen, while in transvaginal the transducer is placed inside the vagina.

Purpose of Ultrasound During Pregnancy

Pregnancy Ultrasound is recommended as a routine during pregnancy to monitor the baby’s development and movement. Some of the uses of Pregnancy Ultrasound are:

  • To determine whether the pregnancy is normal or complicated
  • To determine whether there is a single baby or twins
  • To make sure whether the position of the baby is normal
  • Estimate the size and weight of the baby
  • To check the position and attachment of the placenta
  • To check the baby’s heart rate and respiration
  • To detect the amount of fluid in the amniotic sac
  • To check the baby for any fetal distress
  • For the determination of any physical abnormality in the fetus like abnormalities of the lungs or kidneys etc.