I did my initial TC Class 1 Medical in October in YVR. Very straightforward. Urinalysis, basic check with the Aviation Doctor, then ECG and Hearing test.
The ECG was done in a lab, and the results had to be read and analyzed by a heart specialist.
Hearing test was quite intense. Put you inside a sound proof box with a headset, and listen out for the different tones. They included some static as well to distract you.
You also have to listen to some words and repeat what you hear.
Total cost: 160 for the Doctor, 40 for the ECG, 20 for the heart specialist to read my ECG, and 50 dollars for the hearing test. All Canadian Dollars.
Hope it helps. All the best.