Key Points. 1  Megaloblasts are large nucleated RBC precursors with noncondensed chromatin. 2  The most common causes of megaloblastic, macrocytic anemia are deficiency or defective utilization of vitamin B12 or folate. 3  Do CBC, RBC indices, reticulocyte count, and peripheral smear.
Vein (noun). a train of association, thoughts, emotions, or the like; a current; a course. Vein (noun). peculiar temper or temperament; tendency or turn of mind; a particular disposition or cast of genius; humor; strain; quality; also, manner of speech or action; as, a rich vein of humor; a satirical vein.
A vein is a blood vessel or a distinctive style. Vain means self admiring or futile. (The term in vain means without success). A vane is a stabilizing fin or blade. The words vein, vain, and vane sound identical, but their meanings are very different. The noun vein has several meanings: A blood vessel that carries blood from the capillaries towards the heart. varicose veins A distinctive style or manner. A layer of ore or mineral between layers of rock.