The Health Professions Appeal and Review Board was looking into the case of Smith, a 19-year-old from Moncton, who choked herself to death in an Ontario prison in 2007.
The board found that the investigation of the College of Physicians and Surgeons of Ontario was adequate, though it was still critical of how Smith's case was handled in prison.
The review finds it is difficult to understand how the resources of the Correctional Service of Canada could not have somehow treated her appropriately.
A delay-plagued coroner's inquest into Smith's death will resume under a different coroner in September.
