manage

ultimately, the main purpose/goal/aim/objective of a doctor is to be able to manage his patients accordingly and safely until the patient is stable and treated well

and to be able to do that, the doctor must be able to recognise whats the current problems and formulate list of diagnoses or problems in the patient

this is where the basic theory and knowledges, history, physical examinations, and investigations are very important

....

my main point is : study until whatever problems patients comes with, you must be able to manage the patient well (at your level)

few ways to do this :

1) learn the basics knowledges, presentations, diagnosis, investigations and managements of a condition

2) cases study. could be from books, journals, etc

3) see how real patients managed in the hospital

nb : always remember that medicine is a lifelong learning