Aplastic anemia is a rare disorder in which the bone marrow fails to produce enough new blood cells. This can lead to a decrease in the number of circulating red blood cells, white blood cells, and platelets in the body. As a result, the body becomes more vulnerable to infections and bleeding complications.
When it comes to the Mean Corpuscular Volume (MCV) of aplastic anemia, the answer is not so straightforward. In general, MCV is a laboratory test that measures the average size of the red blood cells in a sample of blood. A higher MCV value indicates that the red blood cells are larger than normal, which is called macrocytosis. A lower MCV value indicates that the red blood cells are smaller than normal, which is called microcytosis.
In some cases, aplastic anemia can cause macrocytosis, which would lead to a high MCV. This is because the bone marrow is not producing enough red blood cells, and the existing red blood cells become larger in an attempt to compensate for the lack of new cells. However, the most common form of aplastic anemia causes microcytosis, which would lead to a low MCV. This is because the bone marrow is not producing enough red blood cells, and the existing red blood cells become smaller in an attempt to compensate for the lack of new cells.
In conclusion, whether aplastic anemia has a high or low MCV depends on the type of aplastic anemia present. In some cases, aplastic anemia can cause macrocytosis, leading to a high MCV, while in other cases, aplastic anemia can cause microcytosis, leading to a low MCV.