The assessment ordered by a judge on Wednesday will determine whether Meghan Claire Dion is fit to stand trial on charges of attempted murder and assault.
The 34-year-old was arrested after a woman identified by authorities as Dion's mother was allegedly attacked on Friday, March 6.
Police have said a suspect was taken into custody the following Sunday in a vehicle that had allegedly been stolen.
The nurse was treated for non-life-threatening injuries.
Dion will return to court June 24. (CKGY)