CIC has a list of empaneled clinics/hospitals where you need to get medical tests done. Check this link http://www.cic.gc.ca/pp-md/pp-list.aspx. The following basic tests and checks are carried out (If you have had any or have any medical conditions, you need to let them know and also carry any medical records that you have)
1. Blood
2. Urine
3. Chest X-Ray
4. Eye Sight
5. Blood Pressure
6. Height/Weight
7. Physical examination by physician
You will not be given the results of the tests, the clinic will upload it directly to CIC. You will be given an Acknowledgement Form which you need to upload as proof of medical exam. Please ensure all the information on the Acknowledgment Form is correct as per passport and that the category on your medicals is mentioned as Non-EDE/Worker. If you find any discrepancy, get it corrected then and there itself and get an updated Acknowledgement Form.