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:
Most pregnant women are referred for their first routine ultrasound scan somewhere between 11 and 18 weeks of pregnancy. The purpose of the scan is: 1  to confirm that there is a heartbeat. 2  to assess the babyâs size and growth. 3  to estimate the delivery date and. 4  to check whether there is one baby, or twins or more.