The procedure for undergoing an immigration medical for Canada is quite complicated. I am aware of many people who have messed it up by giving incorrect information to the doctor, causing delays and misdirected files. Common errors are:
1. Forgetting to bring the Client ID number (UCI) or the Visa Centre number to the doctor.
2. Not using exactly the same name for the application and the medical. (getting married in between is a common cause)
3. Not telling the doctor if a sponsored application is lodged within Canada or outside Canada (the procedures are different)
Good information on these aspects and others can be found at immigrationmedical.ca

1. Forgetting to bring the Client ID number (UCI) or the Visa Centre number to the doctor.
2. Not using exactly the same name for the application and the medical. (getting married in between is a common cause)
3. Not telling the doctor if a sponsored application is lodged within Canada or outside Canada (the procedures are different)
Good information on these aspects and others can be found at immigrationmedical.ca
