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]).
A complete blood count is a key test that doctors use to check if a person is anemic. It is a complete profile of your blood cells including red blood cells (RBCs), white blood cells (WBCs) and platelets. It also checks if your hemoglobin levels are normal. 2. Vitamin B12: Vitamin B12 is an important factor required for making RBCs. The normal range for vitamin B12 is between 200 and 900 pg/mL (picograms per milliliter). Lower than 200 pg/ml of vitamin B12 can lead to pernicious anemia or megaloblastic anemia.