Erythropoiesis-stimulating agents are only recommended in people with severe anemia. Efforts to treat anemia by correcting the iron imbalance in the body with therapies such as oral iron supplements or vitamins have generally been shown to be ineffective. In fact, these efforts can have a negative impact on overall health. For example, iron supplementation is controversial because some diseases like cancer use iron to grow and spread, and some infections use iron for food. Finally, patients with kidney disease may not have the hormone to stimulate normal production of red blood cells by the bone marrow.
If the cells are smaller than normal, anemia is considered to be microcytic; if they are normal (80–100 fl), normocyte; and if they are larger than normal, the anemia is classified as macrocyte. This pattern quickly exposes some of the most common causes of anemia; for 經血過多 example, microcytic anemia is often the result of iron deficiency. The limitations of the CVD include cases where the underlying cause is due to a combination of factors, such as iron deficiency and vitamin B12 deficiency, where the net result may be normocyte cells.
Iron deficiency anemia is a common condition in which individuals have insufficient levels of iron in the body and cannot produce enough red blood cells to carry oxygen through the body. Iron deficiency anemia can cause various symptoms, including fatigue, weakness, pale skin, shortness of breath, headache and dizziness. Additional symptoms that may occur in people with iron deficiency anemia include cold hands or feet, irritability, irregular heartbeat, and increased sensitivity to the development of infections. Chronic anemia and iron deficiency anemia can be confused as both are associated with a decrease in circulating iron. This type of anemia occurs when a long-term medical condition affects your body’s ability to produce healthy red blood cells. Underlying conditions may vary and may include chronic diseases such as cancer, infections, kidney disease and autoimmune and inflammatory diseases such as rheumatoid arthritis or lupus.
For people requiring surgery, preoperative anemia may increase the risk of requiring a blood transfusion after surgery. The red blood cells live for about 100 days, so the body is constantly trying to replace them. In adults, the production of red blood cells occurs in the bone marrow. Doctors are trying to determine whether a small number of red blood cells are caused by increased blood loss from red blood cells or by less production from them in the bone marrow. Knowing whether the number of white blood cells and / or platelets has changed also helps to determine the cause of anemia.
Pernicious anemia refers to vitamin B12 deficiency caused by autoantibodies that interfere with the absorption of vitamin B12, focusing on the intrinsic factor, gietal gastric cells or both. This type of anemia occurs when your body cannot absorb vitamin B12, which is necessary to make healthy red blood cells and for the nervous system to work properly. The diagnosis and treatment of iron deficiency anemia can yourself cause adverse health effects due to too much iron in the blood. Complications of too much iron in the blood include liver damage and constipation. If you have symptoms of iron deficiency anemia, talk to your doctor.
The most common cause of anemia in the world is iron deficiency. Iron is necessary to form hemoglobin, part of the red blood cells that carry oxygen and remove carbon dioxide from the body. About a third of the iron is also stored as ferritin and heosiderin in the bone marrow, spleen and liver.
It is a type of anemia caused by a damaged bone marrow that cannot produce enough red blood cells. Another name for aplastic anemia is aplasia of the bone marrow . Some people may consider this condition as cancer, but it is not. This group of anemias develops when red blood cells are destroyed faster than the bone marrow can replace them. Some blood diseases increase the destruction of red blood cells. You can inherit hemolytic anemia or develop it later in life.
Iron supplements, erythropoiesis stimulating agents and red blood cell transfusions are options for the current treatment of anemia in chronic kidney disease . Doctors and researchers are working on possible new treatments for anemia that can be administered orally and may offer another treatment option. The correct number of red blood cells and the prevention of anemia require cooperation between the kidneys, bone marrow and body nutrients. If the kidneys or bone marrow are not working or the body is malnourished, the normal number and function of red blood cells can be difficult to maintain.