Transcript for Hospital Mix-Ups More Common Than Thought
Some startling news tonight about the quality of hospital care an investigation found. The hospital workers report only one in seven medical mistakes on Medicare patients. And even when the errors are reported little is done to stop them from happening again so what are these errors here's ABC's doctor Richard -- Mary Brittany Taylor's mother went to the hospital with -- simple case of doubt and should not going to the hospital -- out and die for eight days later. -- -- -- -- -- -- In came out with a dangerous infection. The pain is like somebody -- -- with a back today's report says that not only your -- happening in hospitals but most are going and reported. In 293. Cases were patients were hurt only 14%. Were reported we don't know the full magnitude of how many patients are -- But some estimates say. It's one in ten and most of them can be prevented. Doctor Peter prone -- part of the team that pioneered in answer it seemed so simple. A checklist a proper procedures. Just like airline pirates used before they take off in the operating room is reduced deaths by a staggering 46% the -- cost nothing. But not every hospital uses. So what can you do ask if your hospital is using its checklist. Have someone with few in the hospital who can tell nurses and doctors if you're not acting like yourself. Bring a list of all the medications you take. And that basic one if you don't see them wash their hands speak up it's your right. For Mary's mom with medication here her mother became disoriented they -- said -- is this your -- is this how your mother normally acts they cannot. If hospitals -- activities report the -- -- it. Medical mistakes will be noticed reported. And it's hoped reduced. Doctor Richard -- ABC news New York.
This transcript has been automatically generated and may not be 100% accurate.