The same question came to my mind and I asked a doctor "Sir, what happens to the students in MBBS who just pass taking a border mark?" The doctor said you should still be ok because passing score itself is like 60% + lot of practice involved. I did not bother to check the pass mark required for the course but now-a-days I go to doctor who have at least 10+ years of experience.
With some else :) Keeping the joke aside. I would want them to assist senior doctor for some time and personally i always use second opinion. BTW, if you do not you can get anti-biotic off the shelf and most of the doctors will give you in first visit.
