A nurse at Philadelphia-based Thomas Jefferson University Hospital was stabbed in the leg while trying to protect her patient, The Philadelphia Inquirer reports.
Philadelphia police said the woman who stabbed the 42-year-old nurse was attempting to stab her sick father.
The 55-year-old father suffered a wound to the head from a soda can during the 7:20 p.m. attack Aug. 4. The nurse and father were stabilized.
The daughter who attacked was arrested and a weapon was seized, police said.
Police have yet to release the identity of the three individuals.