In order to facilitate behavior change it is important to address these external forces. Social Marketing Tools: personal sales, sales promotion, and consumer empowerment. Interpersonal The next level of SEM considers the first of these external forces, interpersonal processes.
You also may need an ultrasound test to see if the valves in your veins are functioning normally or if there's any evidence of a blood clot. In this noninvasive test, a technician runs a small hand-held device (transducer), about the size of a bar of soap, against your skin over the area of your body being examined.
The diagnostic medical sonographer presses an instrument called an ultrasound transducer to the parts of the patientâs body that are being examined. The transducer emits pulses of sound that bounce back, causing echoes. The echoes are then sent to the ultrasound machine, which processes them and displays them as images.