Alternate Names : Transvaginal Ultrasound, Also Known As TVUS, First Trimester Ultrasound, Obstetrical Ultrasound, Pelvic Ultrasonography in Pregnancy, Obstetric Sonogram, Obstetric Ultrasonography
What is involved in preparation for the test?
The woman should wear loose-fitting, two-piece clothes. If done early in the pregnancy, the
woman may need to have a full bladder. This can help with getting a clearer picture from the sound waves.
A full bladder is not usually needed in the later stages of pregnancy.