At 22 when Doris Grünwald decided to donate blood for the first time, she had no idea it would undo everything she knew about her life to that point.
The Austrian woman discovered her blood was not Type A negative, as she had previously thought, which triggered the realisation she could not be related be to the couple who had raised her.
A DNA test confirmed Doris’ worst fears; her mother and father were not her biological parents.
The family now firmly believes the mistake was caused by a hospital mix-up in the hours after her birth on October 31, 1990.
This week, a regional court ordered Austria's hospital association to pay 30,000 euros, or close to AU$45,000, for the pain caused by their "gross negligence" and so the 27-year-old can be formally adopted by the people she always thought were her parents, according to The Sun.
Meanwhile, Doris has taken to social media to try find her biological parents and the other young woman affected by the unimaginable error.
"Since the [hospital] still denies that a child interchange had happened with them and we have not yet found our biological parents or child, I am also trying to do this," she wrote in a Facebook post.
"If someone feels touched or has a hint, I would be very grateful for a contact."