The following laboratory tests may be helpful in determining causes of restless legs syndrome (RLS) or identifying conditions that rule it out. 1  Blood glucose tests for diabetes. 2  Tests for kidney problems. 3  In certain cases, tests for thyroid hormone, magnesium, and folate levels.
Osteoarthritis. Osteoarthritis is the most common form of arthritis in the knee. It is a degenerative,wear-and-tear type of arthritis that occurs most often in people 50 years of age and older, but may occur in younger people, too. In osteoarthritis, the cartilage in the knee joint gradually wears away.he most common types of arthritis are osteoarthritis and rheumatoid arthritis, but there are more than 100 different forms. In 2012, more than 51 million people reported that they had been diagnosed with some form of arthritis, according to the National Health Interview Survey.
Degenerative arthritis, also known as osteoarthritis, is the wearing down of the cartilage of a single or more joints in the hands, spine, feet, hips or knees. The wearing down would in extreme cases lead to a loss of the cartilage.egenerative arthritis is the most common form of arthritis which is said to afflict an estimated 20 million Americans. Learn more about the symptoms of degenerative arthritis so that you could get the necessary medical attention before it's too late for this painful condition.