I have been performing ultrasound for nearly two decades. I have always allowed for one family member to join a patient during a vascular exam. I always ask the patient for HIPPA reasons. This is important as they may not want a family member to join!
In times when a patient is exposed (testicular, transvaginal, etc) it is reasonable to not allow a family member back. During sterile procedures family members should not be allowed as well as unnecessary medical personnel. What are your thoughts?