How to check your medical records for dangerous errors

When Liz Tidyman's elderly parents moved across the country to be closer to their children and grandchildren years ago, they carried their medical records with them in a couple of brown cardboard folders tied with string.

Two days after their arrival, Tidyman's father fell, which hadn't happened before, and went to a hospital for an evaluation.
In the waiting room, Tidyman opened the folder. "Very soon I saw that there were pages and pages of notes that referred to a different person with the same name -- a person whose medical conditions were much more complicated and numerous than my father's," she said.
Tidyman pulled out sheets with mistaken information and made a mental note to always check records in the future. "That was a wake-up call," she said.