Barium Enema with Air Contrast. Your doctor has requested a procedure called a barium enema with air contrast. This exam is performed to assess a change in bowel habits, abdominal pain or rectal bleeding, or if your doctor suspects that you may have diverticulitis (small inflamed areas in your colon) or polyps (growth of tissue on your colon).
Medial Branch Block. The medial branch nerves are small nerve branches that transmit pain from the facet joints (small joints between vertebrae). The nerves do not control any muscles or sensation in your arms or legs.They are located along a boney groove in your back and neck.edial Branch Block. The medial branch nerves are small nerve branches that transmit pain from the facet joints (small joints between vertebrae). The nerves do not control any muscles or sensation in your arms or legs.
One condition that can trigger the medial branch nerves to signal pain is facet joint osteoarthritis. Osteoarthritis is the wearing down of cartilage on joints, and when cartilage wears away, bones are left to rub directly on each other.