Final answer:
The medical assistant should use visual cues such as waving or a gentle shoulder touch and maintain eye contact to get the attention of a deaf patient in a waiting room.
Step-by-step explanation:
When a medical assistant needs to gain the attention of a 67-year-old deaf woman in a waiting room, the most appropriate method is to ensure the approach is visual and gentle. The medical assistant could get into the line of sight of the patient and then wave or use a gentle touch on the shoulder to gain attention.
It is important to maintain eye contact and use clear gestures or visual cues to communicate the intent to escort the patient to the exam room. If the woman uses sign language, the medical assistant might also use basic signs to communicate.