First Trimester Obsterical Ultrasound

First trimester ultrasound is performed for

• pregnancy dating
• assessment of fetal viability
• identification of twins
• nuchal translucency (NT) screening for Down syndrome
• Full Integrated Screening
• tubal pregnancy
• threatened miscarriage

How is the the exam performed:

First trimester sonogram usually begins with a transabdominal sonogram performed with a full bladder. The distended bladder displaces small bowel loops out of the pelvis and allows visualization of the uterus and ovaries.

If adequate visualization of the pregnancy is accomplished transabdominally and no ovarian abnormalities are noted, then the examination is considered complete.

If a more detailed assessment of the pregnancy or of the uterus or the ovaries is indicated, then a transvaginal sonogram is performed following emptying of the bladder.

• Do I need a full bladder?
• How soon will I get my results?
• Is ultrasound safe?
• Can ultrasound detect all fetal abnormalities?
• When should ultrasound be performed?
• When is the best time to have a survey to check for fetal abnormalities?
• Do I need a referral from a physician to come to Peninsula Diagnostic Imaging?