QA includes prevention of quality problems through planned and systematic activities where as QC includes activities or techniques used to achieve and maintain the product quality, process and service.
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.
A lack of vitamin B12 (vitamin B12 deficiency) causes the signs and symptoms of pernicious anemia. Without enough vitamin B12, your body can't make enough healthy red blood cells, which causes anemia.Some of the signs and symptoms of pernicious anemia apply to all types of anemia. Other signs and symptoms are specific to a lack of vitamin B12.ithout enough vitamin B12, your body can't make enough healthy red blood cells, which causes anemia. Some of the signs and symptoms of pernicious anemia apply to all types of anemia. Other signs and symptoms are specific to a lack of vitamin B12.