Health Information
Fetal Ultrasound
What Affects the Test
Fetal ultrasound results may be affected by:
- Being very overweight or Reference obese Opens New Window.
- Stool (feces) or air in the intestines or rectum.
- An abnormally low amount of amniotic fluid.
- Some fetal positions.
- Not being able to lie still during the procedure.
- A very active fetus.
| By: | Reference Healthwise Staff | Last Revised: Reference June 18, 2012 |
| Medical Review: | Reference Sarah Marshall, MD - Family Medicine
Reference William Gilbert, MD - Maternal and Fetal Medicine |
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