Final answer:
When conducting a patient interview with a cooperative 9-year-old child, it is important to allow the child to answer each question in their own words and use some medical terms as appropriate.
Step-by-step explanation:
When conducting a patient interview with a cooperative 9-year-old child, it is important for a medical assistant to use appropriate techniques. One of these techniques is to allow the child to answer each question in his own words. This allows the child to express their thoughts and feelings freely, fostering a trusting and comfortable environment.
Additionally, it is important to use some medical terms as appropriate. This can help educate the child about their health and medical condition, while still using language they can understand.
It is not appropriate to finish the child's sentences, allow the parent to answer for the child or address all questions to the parent, as these actions may undermine the child's sense of autonomy and hinder effective communication.