Long known as the âsunshine vitaminâ because the body makes it when skin is exposed to sunlight, vitamin D might now be dubbed the âsuperstar vitamin,â judging by the amount of attention it has garnered of late from researchers and the general public.
Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test. Vitamin B12 deficiency can be caused by many factors, one of which is pernicious anemia, a condition resulting in deficient production of intrinsic factor in the parietal cells of the stomach. Intrinsic factor is a protein that is needed to assist in the absorption of vitamin B12 into the small intestine.
The symptoms of pernicious anemia can vary amongst individuals, depending on the cause, the severity of anemia, and other factors. Direct symptoms of pernicious anemia are due to a lack of red blood cells, which are vital to carrying oxygen to the cells of the body.Symptoms can include pale skin, shortness of breath, fatigue, dizziness, headache, cold hands and feet, heart palpitations, and chest pain.ore information about symptoms of Pernicious anemia and related conditions: 1  Other diseases with similar symptoms and common misdiagnoses. 2  Tests to determine if these are the symptoms of Pernicious anemia. 3  Symptoms that may be caused by complications of Pernicious anemia. 4  Underlying causes of Pernicious anemia.