A. Midline 2 to 3 cm (0.8 to 1.2 in) above the symphysis pubis. Normal ultrasounds use sound waves to produce images, but unlike Doppler devices, they are unable to show blood flow.
The Doppler device ultrasonography is a non-invasive diagnostic that gauges the blood flow through your arteries by reflecting high-frequency sound waves off circulating red blood cells. Doppler ultrasound uses sound waves to monitor artery blood flow. It is used to examine the blood flow to the placenta, uterus, and unborn child throughout pregnancy.It has advantages when used in high-risk pregnancies where the health of the unborn child is a worry. Nowadays, most pregnant women have an ultrasound before 12 weeks. Typically, a fetal Doppler test is performed between weeks 13 and 28 of your second trimester.
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Answer: field of view
Explanation: The name of the circle you see when you look through the ocular lens of the microscope is called the field of view. :)
