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.
Set the bag in a dish and let the lamb marinate in the refrigerator for several hours or overnight-up to 24 hours. Step 6. Roasting the Boneless Leg of Lamb. Remove the lamb from the refrigerator at least 1 hour before cooking it.Preheat the oven to 450 F. degrees. (450Âº F = 230Âº C = gas mark 9). Snip the corner of the bag and squeeze the marinade out into the sink.s always, there are many different recipes for cooking a leg of lamb. Elise cooks her leg of lamb with the bone in by starting at 425 degrees for 20 minutes then turns the oven down to 300Â°F and continues to roast the meat for about 10-12 minutes per pound for medium rare lamb.