blood 2 Flashcards
A lack of intrinsic factor, leading to a deficiency of vitamin B12 and large pale cells called macrocytes, is characteristic of ________.
-pernicious anemia
-polycythemia
-sickle-cell anemia
-aplastic anemia
pernicious anemia
All of the following can be expected with polycythemia except ________.
low blood viscosity
increased blood volume
high hematocrit
high blood pressure
low blood viscosity
An individual who is blood type AB negative can ________.
-receive any blood type in moderate amounts except that with the Rh antigen
-donate to all blood types in moderate amounts
-receive types A, B, and AB, but not type O
-donate to types A, B, and AB, but not to type O
receive any blood type in moderate amounts except that with the Rh antigen
As red blood cells age ________.
-they will eventually be excreted by the digestive system
-iron will be excreted by the kidneys
-ATP production increases
-membranes “wear out” and the cells become damaged
membranes “wear out” and the cells become damaged
Blood is a ________.
suspension
homogeneous compound
colloid
heterogeneous compound
suspension
Blood volume restorers include all of the following except ________.
albumin
dextran
packed cells
saline solutions
packed cells
James has a hemoglobin measurement of 16 g/100 ml blood. This is ________.
-above normal
-normal only if James is an infant
-within the normal range
-abnormally low
within the normal range
No visible cytoplasmic granules are present in ________.
eosinophils
monocytes
basophils
neutrophils
monocytes
Place the following in correct developmental sequence:
- reticulocyte
- proerythroblast
- normoblast
- late erythroblast
1, 3, 2, 4
2, 1, 3, 4
1, 2, 3, 4
2, 4, 3, 1
2, 4, 3, 1
Select the correct statement regarding blood cell formation.
-Red marrow is the main site of blood cell formation throughout adult life.
-Before the seventh month of fetal development, yellow marrow is the main site of blood cell formation.
-The main sites of blood cell production in adults are the spleen and the liver.
-Yellow marrow is the main site of leukocyte formation
Red marrow is the main site of blood cell formation throughout adult life.
Sickling of red blood cells can be produced in those with sickle-cell anemia by ________.
-travel at high altitude and vigorous exercise
-vigorous exercise
-travel at high altitude
-malaria and travel at high altitude
travel at high altitude and vigorous exercise
The most abundant plasma protein is ________.
albumin
bile
globulin
clotting protein
albumin
The slowest step in the clotting process is ________.
-binding fibrin strands
-release of PF3
-formation of prothrombin activator
-production of fibrin strands
formation of prothrombin activator
Thromboembolic disorders ________.
-include thrombus formation, a clot in a broken blood vessel
-include embolus formation, a clot moving within the circulatory system
-result in uncontrolled bleeding
-are caused by vitamin K deficiency
include embolus formation, a clot moving within the circulatory system
What organ in the body regulates erythrocyte production?
pancreas
liver
brain
kidney
kidney
When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother?
if the father is Rh-
if the child is Rh+
if the father is Rh+
if the child is type O positive
if the father is Rh-
When neither anti-A sera nor anti-B sera clot on a blood plate with donor blood, the blood is type ________.
B
AB
O
A
O
Which blood type is called the universal donor?
A
B
AB
O
O
Which of the choices below is the parent cell for all formed elements of blood?
polymorphonuclear cell
NK cell
pluripotent stem cell (hemocytoblast)
megakaryocyte
pluripotent stem cell (hemocytoblast)
Which of the following is a protective function of blood?
-maintenance of normal pH in body tissue
-maintenance of adequate fluid volume
-prevention of blood loss
-maintenance of body temperature
maintenance of body temperature
Which of the following is a regulatory function of blood?
-delivery of oxygen to body cells
-prevention of blood loss
-transport of metabolic wastes from cells
-maintenance of normal pH in body tissues
maintenance of normal pH in body tissues
Which of the following is not a cause of bleeding disorders?
-thrombocytopenia, a condition of decreased circulating platelets
-a defect in the clotting cascade
-vitamin K deficiency
-excess secretion of platelet-derived growth factor (PDGF)
excess secretion of platelet-derived growth factor (PDGF)
Which of the following might trigger erythropoiesis?
-hypoxia of EPO-producing cells
-decreased tissue demand for oxygen
-an increased number of RBCs
-moving to a lower altitude
hypoxia of EPO-producing cells
Which of the statements below is an incorrect or false statement?
-Unique to the ABO blood group is the presence in the plasma of preformed antibodies.
-Blood typing for the Kell, Lewis, and Duffy factors is always done before a blood transfusion.
-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.
-Transfusion of incompatible blood can be fatal.
Transfusion of incompatible blood can be fatal.
