Ch. 49 Terminology

Question 1

Anemia

Answer 1

disorder involving too few RBCs or ineffective RBCs that can alter the bloods ability to carry oxygen

Question 2

Erythrocytes

Answer 2

RBCs, responsible for carrying oxygen to the tissues and removing carbon dioxide; no nucleus and live 120 days

Question 3

Erythropoiesis

Answer 3

process of RBC production and life cycle; formed by megaloblastic cells in the bone marrow, using iron, folic acid, carbohydrates, vit. B12 and amino acids

Question 4

Erythropoietin- kidneys to bone marrow

Answer 4

gylocprotein produced by the kidneys, released in response to decreased blood flow or low oxygen tension in the kidney; stimulates RBC production in the bone marrow

Question 5

Iron deficiency anemia

Answer 5

low RBC count with low iron available because of high demand, poor diet, or poor absorption; treated with iron replacement

Question 6

Megaloblastic anemia

Answer 6

anemia caused by lack of Vit. B12 and/ or folic acid, in which RBCs are fewer in number and have a weak stroma and a short lifespan; treated by replacement of folic acid and vitl. B12

Question 7

Pernicious anemia

Answer 7

type of megaloblastic anemia characterized by lack of vit. B12 secondary to low production of intrinsic factor by gastric cells; vit. B12 must be replaced by IM injection or nasal spray because it cannot be absorbed through the GI tract

Question 8

Plasma

Answer 8

the liquid part of blood; mostly water and plasma proteins, glucose, and electrolytes

Question 9

Reticulocyte

Answer 9

RBC that has lost its nucleus and entered circulation just recently, not yet fully matured