Tipos de Exame
Obstetric Ultrasound
Performed up to the 14th week of gestational age, via transvaginal route. Used to date the pregnancy and check for possible issues.
Performed between 11 and 14 weeks, via transvaginal route. Used to check fetal nuchal thickness. A thickened nuchal fold may indicate a genetic condition in the fetus.
Performed between 11 and 14 weeks, via transvaginal and abdominal routes. Screens for fetal malformations.
Performed via abdominal route. Checks weight and gestational age. Determines gender after the 16th week of pregnancy.
Performed between 22 and 24 weeks, via abdominal route. Screens for fetal malformations. The most important exam of the pregnancy.
Performed in the second or third trimester, via abdominal route. General fetal assessment and screening for fetal distress.
Performed in the third trimester, via abdominal route. General fetal assessment and screening for fetal distress.
Frequently Asked Questions About Obstetric Ultrasound
The first obstetric ultrasound is recommended between the 6th and 8th week of pregnancy to confirm pregnancy and verify it is intrauterine.
A morphological ultrasound is a detailed exam that evaluates the baby's anatomy, checking organs, limbs, and possible malformations. It is usually performed between the 20th and 24th week.
Yes, 3D/4D ultrasound is safe and uses the same technology as conventional ultrasound, only with different image processing. It does not pose risks to the baby.
The number of ultrasounds varies by case, but generally 4 to 6 exams are performed throughout prenatal care for complete monitoring.