a thorough ear, nose, and throat examination and uses detailed diagnostic tests, including an audiogram and imaging studies of the mastoid bone using x rays or CT scans
For most procedures under local anesthesia (numbing the area while awake), there is no special preparation. If you plan on having a sedation for the procedure or just want to keep your options open...
This depends entirely on the surgery. Some surgeries require nearly no preparation. Having a skin lesion removed, for example, or having an artificial lens put in your eye require little more than...
Before lymph nodes are removed, a small amount of tissue is usually removed. A biopsy will be performed on it to check for the presence of abnormal cells.