Dr. Shaista

what should be the criteria which will confirm that a student being admitted to a professional college will not leave the country and will definitely work 10 years from now...??
I know someone who had leukemia and went to medical school and had to take a year off in the 4th year.Or someone who died of an aneurysm in third year of medical school.The government should do health screenings to make sure these people dare not get admission into any school or college because if they are not able to work then its such a waste...!!