To check fetal development and make sure everything is normal.
Doctors can do an ulta-sound examination which will show exactly what kind of fetal development is taking place in your uterus.
A blood test can be done at your doctors office. Ultra sound of the uterus can show if there is a a sac forming but the standard urine test will normally turn positive before it is possible to see a sac forming with ultra sound.
ultra sound
You need to have an M.D. and have a field in OBGYN
ultra sound tech
frequencies higher than 20 kHz are called ultra sound or ultra sonic sound.
ultra sound is 20 to 20000 hertz its applications just find it
you have to upgrade your clinic and the ultra sound comes with it.
Bats use ultra sound by sending out ultra sound waves and then when the bounce back the know exactly where everything is even in the dark. I will work better with ultra sound because all of the wave will bounce back otherwise some of the wave will be absorbed.
Ultra Sound - 1998 Will Smith was released on: USA: 1999
Getting and ultra sound done can cost anywhere from 100 dollars to 500 dollars. It all depends on the doctor, what ultra sound you want done and if you have any insurance to cover it.
everything you need to know about ultrasound is right here http://en.wikipedia.org/wiki/Ultrasound