This is a comprehensive article published by the New England Journal of Medicine (NEJM) on language barriers in the medical field.
Some particularly impactful examples of mistranslation:
"One interpreter, mistranslating for a nurse practitioner, told the mother of a seven-year-old girl with otitis media to put (oral) amoxicillin “in the ears.”"
"In another case, a Spanish-speaking woman told a resident that her two-year-old had “hit herself” when she fell off her tricycle; the resident misinterpreted two words, understood the fracture to have resulted from abuse, and contacted the Department of Social Services (DSS). DSS sent a worker who, without an interpreter present, had the mother sign over custody of her two children."