1.So what was the initial deadline?
2.Also does your letter say where to send the medicals. Because I talked to doctors here in the US they told me that they send medical results to Canada then from Canada the results are sent to the local visa office. Although those who belong to visa offices in Europe have to send medical results to London, UK.
1. Visa office-specific checklist should specify that.
2. I think it will depend on the consulate you applied to. I am sure that results for the consulate in Buffalo are going to Ottawa, results for European consulates are processed in London, England. Anyway, the DMP should send the results out to teh right place (without showing them to you ...:()
check the regional medical offices here:
http://www.cic.gc.ca/english/resources/publications/dmp-handbook/appendix-01.asp