A parietal cell antibody test may be used along with or following an intrinsic factor antibody test to help determine the cause of a vitamin B12 deficiency and to help confirm a diagnosis of pernicious anemia.
1 Place leg of lamb on a rack in a roasting pan. 2  Preheat oven to 325 degrees and bake leg of lamb uncovered for 30 minutes per pound or until internal temperature reaches 120 to 130 degrees at the thickest point. Preheat oven to 325 degrees and bake leg of lamb uncovered for 30 minutes per pound or until internal temperature reaches 120 to 130 degrees at the thickest point.
Place the lamb in a roasting or sheet pan with the ribs curving down, and coat the tops with the mustard mixture. Allow to stand for 1 hour at room temperature. Preheat the oven to 450 degrees F. Roast the lamb for exactly 20 minutes for rare or 25 minutes for medium-rare.Remove from the oven and cover with aluminum foil. Allow to sit for 15 minutes, then cut into individual ribs and serve.lace the lamb in a roasting or sheet pan with the ribs curving down, and coat the tops with the mustard mixture. Allow to stand for 1 hour at room temperature. Preheat the oven to 450 degrees F. Roast the lamb for exactly 20 minutes for rare or 25 minutes for medium-rare.