Chapter 17 Multiple Choice 100% Correct

Which of the following is a pivotal molecule associated with the external surfaces of aggregated platelets and is involved in the intrinsic and extrinsic mechanisms of blood clotting? A) Thrombin B) PF3 C) PGI2 D) Thromboplastin (prothrombin activator) -ANSWER B) PF3 What is the average normal pH range of blood? A) 8.35-8.45 B) 7.75-7.85 C) 4.65-4.75 D) 7.35-7.45 -ANSWER D) 7.35-7.45 The special type of hemoglobin present in fetal red blood cells is ________. A) hemoglobin F B) hemoglobin B C) hemoglobin A D) hemoglobin S -ANSWER A) hemoglobin F Which of the choices below is the parent cell for all formed elements of blood? A) polymorphonuclear cell B) pluripotent stem cell (hemocytoblast) C) megakaryocyte D) NK cell -ANSWER B) pluripotent stem cell (hemocytoblast) Which blood type is called the universal donor? A) AB B) O C) B D) A -ANSWER B) O Which of the following is a regulatory function of blood? A) delivery of oxygen to body cells B) maintenance of normal pH in body tissues C) prevention of blood loss D) transport of metabolic wastes from cells -ANSWER B) maintenance of normal pH in body tissues Which of the following is a protective function of blood? A) maintenance of adequate fluid volume B) prevention of blood loss C) maintenance of normal pH in body tissue D) maintenance of body temperature -ANSWER D) maintenance of body temperature Which of the statements below is an incorrect or false statement? A) Blood typing for the Kell, Lewis, and Duffy factors is always done before a blood transfusion. B) When a transfusion reaction occurs, the oxygen-carrying capacity of the transfused blood cells is disrupted and the clumping of RBCs in small vessels hinders blood flow to tissues beyond those points. C) Unique to the ABO blood group is the presence in the plasma of preformed antibodies. D) Transfusion of incompatible blood can be fatal. -ANSWER D) Transfusion of incompatible blood can be fatal. Which of the following might trigger erythropoiesis? A) decreased tissue demand for oxygen B) hypoxia of EPO-producing cells C) moving to a lower altitude D) an increased number of RBCs -ANSWER B) hypoxia of EPO-producing cells As red blood cells age ________. A) iron will be excreted by the kidneys B) membranes "wear out" and the cells become damaged C) ATP production increases D) they will eventually be excreted by the digestive system -ANSWER B) membranes "wear out" and the cells become damaged An individual who is blood type AB negative can ________. A) receive types A, B, and AB, but not type O B) donate to all blood types in moderate amounts C) donate to types A, B, and AB, but not to type O D) receive any blood type in moderate amounts except that with the Rh antigen -ANSWER D) receive any blood type in moderate amounts except that with the Rh antigen The most abundant plasma protein is ________. A) globulin B) bile C) albumin D) clotting protein -ANSWER C) albumin When neither anti-A sera nor anti-B sera clot on a blood plate with donor blood, the blood is type ________. A) A B) B C) O D) AB -ANSWER C) O Select the correct statement regarding blood cell formation. A) Yellow marrow is the main site of leukocyte formation. B) The main sites of blood cell production in adults are the spleen and the liver. C) Red marrow is the main site of blood cell formation throughout adult life. D) Before the seventh month of fetal development, yellow marrow is the main site of blood cellformation. -ANSWER C) Red marrow is the main site of blood cell formation throughout adult life. Blood volume restorers include all of the following except ________. A) dextran B) albumin C) saline solutions D) packed cells -ANSWER D) packed cells James has a hemoglobin measurement of 16 g/100 ml blood. This is ________. A) abnormally low B) a