A nurse practitioner is a registered nurse who has gone through additional training to provide more advanced medical and diagnostic care to patients with all different kinds of illnesses. These medical professionals generally hold at least a master’s degree, so they have a comprehensive basis of medical knowledge to help patients suffering from chronic and acute conditions. They may work in hospitals, intensive care units, hospice centers, and even doctor’s offices, depending on their specialty.

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.