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:
How early can an ultrasound detect a heartbeat? I am 25, and seven weeks pregnant with my first child. I just yesterday got an ultrasound, and no heartbeat was detected. Shouldn't there be a detectable heartbeat by now? This has me worried sick. The doctor said I should come back in a week for another ultrasound. What should I expect?