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.
Roast for 1 hour (this will give you a medium-rare cooked leg of lamb; roast lamb a further 30 minutes for well done). Carefully transfer the lamb to a carving plate or shallow tray, cover loosely with foil and set aside to rest. Increase oven temperature to 230Â°C or 210Â°C fan-force.oast for 1 hour (this will give you a medium-rare cooked leg of lamb; roast lamb a further 30 minutes for well done). Carefully transfer the lamb to a carving plate or shallow tray, cover loosely with foil and set aside to rest. Increase oven temperature to 230Â°C or 210Â°C fan-force.