medical examinations
The legalities of criminal, credit and medical checks in HR

Many employers requesting personal information related to criminal, credit or medical circumstances may consider the requests to be legitimate in creating or maintaining the working relationship. However, they should be careful what they wish for.
CIC revises list of designated countries/territories requiring medical examinations

On September 1, 2010, Citizenship and Immigration Canada announced revisions to its list of designated countries/territories for the purposes of Section 30 of the Immigration and Refugee Protection Regulations.