Answer:
It varies, but can include clerical registration, taking of health history, simple measurements usually performed by a nurse (height, weight, hearing, blood pressure, etc) and consultation with the doctor.
Explanation:
A visit to the doctor's office might be a check up, which will include all of the measurements listed above or may include additional tests that will necessitate laboratory procedures. For instance, your bill may be increased if there is a need to perform blood work or greater urine analysis than what is done in the doctor's office.