The GHM-ONE is based on a powerful processor which, in combination with a relay card and mains adapter card, serves as the base unit. The base unit can be adapted to applications with a communications card and up to two I/O cards. The number of physical inputs and outputs can be expanded with external I/Oâs. This modular layout enables
Some practitioners routinely recommend an ultrasound at 6 to 9 weeks to confirm and date the pregnancy, but others will only do one if they have reason to suspect any of the following:
Fetal ultrasound is usually done by an ultrasound technologist or doctor in a doctor's office, hospital, or clinic. An early fetal ultrasound is one that is done before 18 to 20 weeks of pregnancy. The test takes 15 to 60 minutes. If the test doesn't show any problems, you may feel more at ease during your pregnancy. If the test shows that you are carrying more than one baby, you can plan ahead for a healthy pregnancy and delivery.