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:
âStill, a pregnancy can be perfectly healthy and not have a visible heartbeat at six weeks. Many doctors are hesitant to bring a patient in that early, because if no heartbeat can be found it can worry her unnecessarily. By eight weeks though, there should definitely be a nice, strong heartbeat. So [this is] the optimal time for a first appointment by many doctors.â. Itâs also worth noting that while a heartbeat should be visible on an ultrasound by eight weeks, the heartbeat wonât be audible until farther along in the pregnancy.