Emergency medicine is a subspecialty that focuses on patients who need immediate and often intensive care. These physicians must be able to handle medical problems quickly to avoid potential complications with their patients. With their knowledge of emergency medicine comes knowledge about many other types of medicine, as they must be able to respond to patients who present a variety of symptoms and problems. They will also have a thorough understanding of emergency medical devices.

A rheumatologist is a certified internist who is qualified to diagnose and treat arthritic diseases of the joints, muscles, and bones. Rheumatologists can conduct tests and perform procedures that can help relieve the symptoms of various illnesses and diseases that affect the joints, muscles, and bones.