â¢ If youâre going through the attic, use the spade bit to drill a hole through the top plate, directly above the new electrical box location. If youâre running cable through a basement or crawlspace, drill a hole in the bottom plate directly below the box. â¢ Feed your fish tape into the wall opening, pushing it up into the hole you made in the top plate. If youâre running cable through a basement or crawl space, push it down to the hole in the bottom plate.
Pernicious anemia is one form of vitamin B-12 deficiency that results from the autoimmune process described above. However, other causes of vitamin B-12 deficiency can also produce the same signs and symptoms as pernicious anemia.s discussed previously, true pernicious anemia results from an autoimmune condition that impairs absorption of dietary vitamin B-12, resulting in vitamin B-12 deficiency. Vitamin B-12 deficiency of any cause will result in anemia and neurologic symptoms.
Background. The etiology of vitamin B12 deficiency is diverse and includes lack of intrinsic factor (IF), altered pH in the small intestine, and lack of absorption of B12 complexes in the terminal ileum. Vitamin B12 deficiency from any cause, as well as folic acid deficiency, can result in megaloblastic anemia.he etiology of vitamin B12 deficiency is diverse and includes lack of intrinsic factor (IF), altered pH in the small intestine, and lack of absorption of B12 complexes in the terminal ileum.