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.
1 Put the lamb in a roasting pan and season with salt and pepper, then drizzle over the oil. 2  Roast for 20 minutes, then reduce the oven temperature to 190c/375F/Gas Mark 5, and roast for a further hour (add an extra 20 minutes for well-done lamb). Roast for 20 minutes, then reduce the oven temperature to 190c/375F/Gas Mark 5, and roast for a further hour (add an extra 20 minutes for well-done lamb). 2  Remove from the oven and leave to rest in a warm place for 20 minutes before carving.