loisneece,
Your medicals are valid for a period of one year and you must land in Canada before your medicals expire. From reading other posts on this forum and others, it looks like it can take 3 - 6 months to get your passport request..
Congratulations on getting your Medical & RPRF... it means you are close my friend!!
For our benefit, can you give us some details like what category you applied under, which visa office handled your case and when you applied?
That can help some of us who are still waiting to reach the stage you have reached.