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What Do Colors Indicatenon Ultrasounds
Blood flow: Colors are genertaed during an ultrasound exam by software that detects motion occuring within the ultrasound beam. Standard colors are red and blue designated movement either towards the bam or away from the beam. Asdditional color gradients can indicate velocity and turbulence in the flow. Color in a kidney ultrasound indicates blood flow. ...Read more
Varies: Some pregnancies require no ultrasounds. Most doctors will order at least one preferably done between 18-22 weeks when we can evaluate the anatomy of the baby. An ultrasound can be done in the late first trimester as part of genetic screening. Other sonograms would be ordered for a variety of medical conditions and complications of pregnancy. ...Read moreSee 1 more doctor answer
The most accurate: The earlier you get your first ultrasound, the more accurate is the estimate of your due date and the age of the pregnancy. During the first trimester, the dates are within about a week of the actual conception date. Later in the second trimester, you can be at least 2 weeks off. If you were to present for your first sono in the third trimester there can be 3 or more weeks of uncertainty of dates. ...Read more
Yes: The safety of ultrasound is well established and an early ultrasound is the most accurate for confirming a due date. Usually one first trimester sonogram for dating and a formal anatomy survey in the 2nd trimester are fairly routine. Additional sonograms may be performed for nuchal translucency screening or complications that develop in the pregnancy. ...Read moreSee 1 more doctor answer
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