Going to the doctor isn't most people's favorite activity. But it is part of staying healthy (the other major parts are what you eat and how much you exercise). So you may as well get the most out of it. As a doctor I often get asked by friends and family how to make the most of a medical visit. Here's my advice, and it's basically the same whether you are the patient, or a family member or a caregiver of the patient.
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https://www.nytimes.com/guides/well/make-the-most-of-your-doctor-appointment