Final answer:
The interpreter should stand between the patient and the provider in a triangular formation to promote visual cues and engagement, which is key for clear communication.
Step-by-step explanation:
The appropriate position for an interpreter during a routine medical interview is generally beside the patient and slightly behind, forming an effective communication triangle with the patient and the provider. This layout helps facilitate eye contact and allows the patient to observe both the healthcare provider and the interpreter. While there is no universally mandated position, this triangular arrangement is widely recommended for promoting clear communication. Positioning the interpreter behind a curtain is not advisable as it restricts visual cues and engagement during the conversation. The correct answer to where the interpreter should stand is: b) Between the patient and the provider, forming a triangle.