Since the human body is susceptible to many diseases despite its natural defense system (the immune system), there are many ways by means of which the diseases can be detected and discovered. One of the most reliable methods is blood tests.
There are many kinds of the blood tests. One of the most common blood tests is called CBC blood test. This test measures certain components of the blood, such as the red blood cells, the white blood cells, platelets and hemoglobin. Furthermore, CBC test also examines mean corpuscular volume - MVC, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration.
Mean corpuscular volume - MVC blood test
Mean corpuscular volume blood test measures the average volume of size of the individual red blood cells and is a part of CBC test. The red blood cells are also called erythrocytes. The measurement unit used in this type of blood test is femtoliter. The result of mean corpuscular volume blood test is obtained when hematocit is divided by the count of the red blood cells in millions/microliters of blood and then multiplied by ten. Hematocit is obtained by a test that measures the percentage of blood volume taken up by erythrocytes. MCV blood test is used to discover whether there are any ailments or blood disorders. When the level of MCV is below or above the normal range, it means that the person suffers from certain disease although there are hardly any symptoms.
Normal MCV levels
The normal level of mean corpuscular volume in the blood of a healthy person is between 80 and 100 femtoliters. When the level of MVC is higher than 100 femtoliters, then the person has macrocytic red blood cells, which means that the erythrocytes are larger than the normal size. On the other side, when the MCV blood test shows the values of mean corpuscular volume in the blood under 80 femtoliters, it means that the red blood cells are microcytic, or smaller than normal size.
The role of the erythrocytes is very important since they contain hemoglobin that carries the oxygen from the lungs to the cells and tissues throughout the body. When there is low count of the red blood cells, the person suffers from anemia, while high levels of MCV indicates that there are vitamin B12 insufficiency and folic acid insufficiency, as well as hemolytic anemia and pernicious anemia. The low levels of MCV usually indicate iron deficiency anemia.