transitive verb. 1  To keep up or carry on; continue: maintain good relations. 2  To keep in an existing state; preserve or retain: maintain one's composure. 3  To keep in a condition of good repair or efficiency: maintain two cars.
Anemia is usually classified based on the size of RBCs, as measured by the mean corpuscular volume (MCV). Anemia can be microcytic (MCV typically less than 80 Î¼m3 [80 fL]), normocytic (80 to 100 Î¼m3 [80 to 100 fL]), or macrocytic (greater than 100 Î¼m3 [100 fL]).
When the blood does not have enough hemoglobin, a protein found inside red blood cells (RBCs), your blood does not carry enough oxygen to the rest of your body, Anemia occurs.Anemia can make you feel cold, weak, dizzy and irritable. Causes of Anemia.1  do not have adequate iron. complete blood count (CBC) test, which provides the number of red blood cells and the hemoglobin level.The measurement of hemoglobin is the most common method for assessing anemia. WHO's Hemoglobin thresholds used to define anemia. Age or gender group. Hemoglobin (g/dL).