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A 21-year-old female asked:

would a ultrasound be able to detect a baby at 13 weeks?

1 doctor answer1 doctor weighed in
Dr. Michael Gabor
Diagnostic Radiology 33 years experience
Yes.: Yes, an ultrasound should always be able to detect a 13 week intrauterine pregnancy.

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A 36-year-old member asked:

Can I be sure an ultrasound will detect my baby's heartbeat?

2 doctor answers3 doctors weighed in
Dr. Craig Keathley
Obstetrics and Gynecology 24 years experience
Yes: Although it depends on the gestational age and the type of ultrasound (abdominal v vaginal), an ultrasound should be able to identify a heartbeat early in the pregnancy. If the fetal length is greater than 5mm, a heartbeat should be identifiable on transvaginal sonography. If the fetus is too small to identify the heartbeat, a repeat sonogram should be scheduled in 1-2 weeks.
A 35-year-old member asked:

When will I be able to see my baby on an ultrasound?

2 doctor answers5 doctors weighed in
Dr. Katherine Sutherland
Gynecology 43 years experience
6 weeks: You can usually first see the baby's heart beat and the fetal pole on an ultrasound at 6 to 6.5 weeks from the last menstrual period or 4 to 4.5 weeks from the time you conceived. To see the baby's organs like brain, kidneys, liver, and heart chambers, it is best to wait until 16 to 20 weeks from the lmp.
A 45-year-old member asked:

Should I insist on another ultrasound? Baby was around 25the percent size.

3 doctor answers5 doctors weighed in
Dr. Allison Greco
Dr. Allison Greco answered
General Practice 9 years experience
Yes!: Repeat ultrasound during pregnancy is an absolute necessity, especially if there is a problem w/ fetal development. Us is the most reliable way to follow fetal development, response to treatment, etc.
Dr. Bac Nguyen
Dr. Bac Nguyen commented
Family Medicine 23 years experience
an ABSOLUTE necessity?
Apr 4, 2012
A 38-year-old member asked:

What does it mean when my doctor said my baby was measuring large during my ultrasound?

2 doctor answers6 doctors weighed in
Dr. Wiyatta Freeman
Specializes in Obstetrics and Gynecology
Different reasons: Your baby may be measuring for a number of reasons 1. Your last period may be unsure so your due date could be changed by the ultrasound 2. Your size may be off just based on the sonographer, or in the 1st trimester (1 week off), 2nd trimester ( 2 weeks off) etc.. 3. Or you may have gained a lot of weight this pregnancy 4. Or big people may big baby (ie your husband is 6 ft tall etc...).
A 44-year-old member asked:

How do doctors measure a baby's development with ultrasound?

1 doctor answer1 doctor weighed in
Dr. David Griffith
Radiology 37 years experience
Obstetrical Dating: Scanning of the fetus in the first trimester can be performed either transabdominally or transvaginally. Once a pregnancy has been documented, serial examinations are performed and measurements of the fetus, including head circumference, abdomen circumference, and femur length, are used to determine adequacy of growth and development. These parameters are compared to well-established norms.

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Last updated Jan 2, 2015
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