Deck 16: Blood

Question 1

Which of the following is a regulatory function of blood?

A)prevention of blood loss
B)maintenance of normal pH in body tissues
C)transport of metabolic wastes from cells
D)delivery of oxygen to body cells

Answer 1

B

Question 2

Which of the statements below is an incorrect or false statement?

A)Unique to the ABO blood group is the presence in the plasma of preformed antibodies.
B)Transfusion of incompatible blood can be fatal.
C)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.
D)Blood typing for the Kell,Lewis,and Duffy factors is always done before a blood transfusion.

Answer 2

D

Question 3

An individual who is blood type AB negative can .

A)donate to types A,B,and AB,but not to type O
B)donate to all blood types in moderate amounts
C)receive any blood type in moderate amounts except that with the Rh antigen
D)receive types A,B,and AB,but not type O

Answer 3

C

Question 4

Which sequence is correct for the following events? 1.fibrinogen -fibrin
2)clot retraction
3)formation of thromboplastin
4)prothrombin -thrombin

A)3,4,1,2
B)4,3,1,2
C)1,2,3,4
D)3,2,1,4

Question 5

Sickling of red blood cells can be produced in those with sickle- cell anemia by _ .

A)travel at high altitude and vigorous exercise
B)travel at high altitude
C)vigorous exercise
D)malaria and travel at high altitude

Question 6

The slowest step in the clotting process is .

A)release of PF3
B)binding fibrin strands
C)formation of prothrombin activator
D)production of fibrin strands

Question 7

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)PF3
B)Thromboplastin prothrombin activator)
C)Thrombin
D)PGI2

Question 8

Blood is a .

A)suspension
B)colloid
C)homogeneous compound
D)heterogeneous compound

Question 9

James has a hemoglobin measurement of 16 g/100 ml blood.This is .

A)abnormally low
B)normal only if James is an infant
C)within the normal range
D)above normal

Question 10

Blood volume restorers include all of the following except .

A)dextran
B)packed cells
C)saline solutions
D)albumin

Question 11

Fred's blood was determined to be AB positive.What does this mean?

A)His blood lacks Rh factor.
B)Antibodies to A and B are present in the red cells.
C)There are no antibodies to A,to B,or to Rh antigens in the plasma.
D)He can only receive blood from a donor who is AB positive.

Question 12

Which of the following is a protective function of blood?

A)maintenance of normal pH in body tissue
B)maintenance of body temperature
C)maintenance of adequate fluid volume
D)prevention of blood loss

Question 13

As red blood cells age _ .

A)membranes "wear out" and the cells become damaged
B)they will eventually be excreted by the digestive system
C)iron will be excreted by the kidneys
D)ATP production increases

Question 14

Place the following in correct developmental sequence: 1.reticulocyte
2)proerythroblast
3)normoblast
4)late erythroblast

A)1,3,2,4
B)2,1,3,4
C)1,2,3,4
D)2,4,3,1

Question 15

What is the average normal pH range of blood?

A)8)35-8.45
B)4)65-4.75
C)7)75-7.85
D)7)35-7.45

Question 16

Complications of aplastic anemia generally do not include .

A)impaired formation of all formed elements
B)bleeding disorders
C)suppressed immunity
D)increase of leukocytes as a result of erythrocyte loss

Question 17

All of the following can be expected with polycythemia except .

A)increased blood volume
B)low blood viscosity
C)high hematocrit
D)high blood pressure

Question 18

Which of the following might trigger erythropoiesis?

A)an increased number of RBCs
B)hypoxia of EPO- producing cells
C)moving to a lower altitude
D)decreased tissue demand for oxygen

Question 19

Which blood type is called the universal donor?

A)O
B)B
C)A
D)AB

Question 20

Which of the following is not a cause of bleeding disorders?

A)vitamin K deficiency
B)thrombocytopenia,a condition of decreased circulating platelets
C)excess secretion of platelet- derived growth factor PDGF)
D)a defect in the clotting cascade

Question 21

is the stage of development in the life of an erythrocyte during which the nucleus is ejected.

Question 22

Which of the following is characteristic of all leukocytes?

A)They have cytoplasmic granules.
B)They are phagocytic.
C)They are the most numerous of the formed elements in blood.
D)They are nucleated.

Question 23

List the granulocytes and describe their granules.

Question 24

Why is iron not stored or transported in its free form? In what forms)is it stored or transported in blood?

Question 25

When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother?

A)if the father is Rh-
B)if the child is Rh+
C)if the father is Rh+
D)if the child is type O positive

Question 26

What determines whether blood is bright red or a dull,dark red?

Question 27

The most abundant plasma protein is .

A)globulin
B)albumin
C)bile
D)clotting protein

Question 28

List the most common causes of bleeding disorders.

Question 29

Why is hemoglobin enclosed in erythrocytes rather than existing free in plasma?

Question 30

Name the granulocytes and state their average percentage in whole blood.

Question 31

What organ in the body regulates erythrocyte production?

A)kidney
B)liver
C)pancreas
D)brain

Question 32

All of the following conditions impair coagulation except .

A)vitamin K deficiency
B)severe hypocalcemia
C)liver disease
D)vascular spasm

Question 33

When monocytes migrate into the interstitial spaces,they are called .

Question 34

List the general factors that limit normal clot growth.

Question 35

Where and how is iron stored in the body?

Question 36

A lack of intrinsic factor,leading to a deficiency of vitamin B12 and large pale cells called macrocytes,is characteristic of .

A)pernicious anemia
B)sickle- cell anemia
C)aplastic anemia
D)polycythemia

Question 37

No visible cytoplasmic granules are present in .

A)eosinophils
B)basophils
C)neutrophils
D)monocytes

Question 38

Explain why blood is classified as a connective tissue.

Question 39

Destruction of the hematopoietic components of red marrow leads to a condition called
.

Question 40

The formed element can kill parasitic worms.

Question 41

An)is a committed granular leukocyte stem cell that produces neutrophils.

Question 42

Potent platelet aggregates that attract more platelets to the site of an injury are and .

Question 43

Hemoglobin is composed of polypeptide chains.

Question 44

When are whole blood transfusions routinely given?

Question 45

List one example for each of these three functions of blood: distribution,regulation,and protection.

Question 46

What is the buffy coat found in centrifuged whole blood?

Question 47

The rarest leukocyte is the _ .