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A 35-year-old member asked:

do i have to have an amnio if the ultrasound shows lots of findings of trisomy 18?

3 doctor answers9 doctors weighed in
Dr. Pam Yoder
Specializes in Maternal-Fetal Medicine
Diagnosis vs screen: Most maternal-fetal medicine or OB doctors. Sonographers spend time looking at the heart and other structures for abnormalities that can be associated with chromosomal or other problems. Details they see change with fetal age and position. Because there might be structures they cannot see, ultrasound is considered a screening test. To diagnose trisomy requires amniotic fluid or baby blood studies.
Dr. Andrew Ho
Psychiatry 30 years experience
Decision making: The one and only purpose to undergo a screening or diagnostic test is to provide information that can help with making a decision. If ultrasound results already provide enough information for you to make a decision, it does not make sense to do amnio.
Dr. James Ferguson
Pediatrics 46 years experience
Depends: If the findings would determine whether the involved mother will choose to terminate or not, the reliability of the test matters. If the mom would accept a child with normal chromosomes but some identified problems, some form of definitive chromosome study is needed.Whether this is an amnio or a NIPP study is a matter of personal choice.

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If the amniocentesis shows lung problems. Can this be reversed?

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Does an ultrasound of the breast mean I don't have to take a mammogram?

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A 21-year-old member asked:

What will a ct/mri or ultrasound (us) show?

2 doctor answers4 doctors weighed in
Dr. Stephen Saponaro
Specializes in Radiology
Images of the body: Ultrasound, ct, and MRI are three different types of imaging procedures which allow the radiologist see what's going on in your body. Each modality has it's own strengths, weaknesses, and indications. The best use of each is guided by the radiologist. The radiologist interprets at the images and provides a report to your doctor.

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Last updated Oct 1, 2016
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