Final answer:
Anisocytosis refers to the unequal size of cells, particularly RBCs, which is a characteristic feature seen in anemias. It can be caused by blood loss, faulty RBC production, or excessive destruction of RBCs. Anemia leads to lower oxygen levels in the body, causing symptoms like fatigue and an increased risk for infection.
Step-by-step explanation:
Anisocytosis refers to the unequal size of cells, particularly red blood cells (RBCs). It is a characteristic feature seen in various types of anemias. Clinicians use the mean corpuscle volume (MCV) test to measure the size of RBCs and classify them as normocytic (normal-sized), microcytic (smaller-than-normal), or macrocytic (larger-than-normal).
Anisocytosis can be caused by different factors such as blood loss, faulty RBC production, or excessive destruction of RBCs. Reduced numbers of RBCs or hemoglobin in anemia lead to lower levels of oxygen being delivered to body tissues, resulting in fatigue, lethargy, and an increased risk for infection.