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Chapter 17: Blood (Mastering)

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1

What is a hematocrit?

Hematocrit is the percentage of leukocytes and platelets in a whole blood sample.

Hematocrit is the percentage of all formed elements in a whole blood sample.

Hematocrit is the percentage of plasma in a whole blood sample.

Hematocrit is the percentage of erythrocytes in a whole blood sample.

Hematocrit is the percentage of erythrocytes in a whole blood sample.

2

Which of the following is NOT regulated by the blood?

nutrient levels

body temperature

pH level

fluid volume

nutrient levels

3

Which of the following plasma proteins is improperly matched with its function?

gamma globulins: lipid transport

albumin: osmotic pressure

fibrinogen: clotting

alpha globulin: transport of metal ions and fat-soluble vitamins

gamma globulins: lipid transport

4

In a centrifuged sample of blood, what should NOT be in the plasma portion of the sample?

fibrinogen

albumin

electrolytes

platelets

platelets

5

Which plasma constituent is the main contributor to clotting?

fibrinogen

albumin

beta globulins

alpha globulins

fibrinogen

6

What is the name of the protein found in erythrocytes that transports respiratory gases?

fibrinogen

albumin

hemoglobin

antibodies

hemoglobin

7

What triggers erythropoietin (EPO) production to make new red blood cells?

excess oxygen in the bloodstream

too many platelets

a high hematocrit

reduced availability of oxygen

reduced availability of oxygen

8

Which part of the hemoglobin molecule binds carbon dioxide for transport?

iron

spectrin

amino acids of the globin

heme group

amino acids of the globin

9

Choose the statement that is true concerning hemoglobin.

It is composed of four protein chains and four heme groups.

When hemoglobin is not bound to oxygen, it appears blue.

It is found in the plasma portion of blood.

It can bind a maximum of three oxygen molecules.

It is composed of four protein chains and four heme groups.

10

Which of the following does NOT stimulate erythrocyte production?

testosterone

hyperventilating

a drop in normal blood oxygen levels

erythropoietin

hyperventilating

11

Which type of leukocyte is responsible for antibody production?

basophils

monocytes

eosinophils

lymphocytes

lymphocytes

12

Art-based Question

Identify the leukocytes in the figure in order.

eosinophil, neutrophil, monocyte, basophil, lymphocyte

monocyte, eosinophil, lymphocyte, lymphocyte, neutrophil

neutrophil, basophil, eosinophil, monocyte, lymphocyte

neutrophil, eosinophil, basophil, lymphocyte, monocyte

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neutrophil, eosinophil, basophil, lymphocyte, monocyte

13

From which cell do the granulocytes descend?

myeloblast

monoblast

promonocyte

lymphoid stem cell

myeloblast

14

On a blood smear slide prepared using Wright's stain, you observe a large cell with a U-shaped nucleus and pale blue cytoplasm. This cell is most likely a(n) __________.

basophil

monocyte

eosinophil

lymphocyte

monocyte

15

Which of the following leukocyte is NOT correctly matched with its function?

basophils: inflammation

eosinophil: bacterial macrophage

lymphocytes: immune response against viral infections

monocytes: macrophage

eosinophil: bacterial macrophage

16

What factor stimulates platelet formation?

thrombopoietin

plasmin

erythropoietin

interleukin 2

thrombopoietin

17

Art-based Question

During which event of hemostasis do clotting factors (procoagulants) assist with the transformation of blood from a liquid to a gel?

A

B

C

D

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D

18

Hemostasis is important for __________.

stoppage of bleeding

white blood cell production

red blood cell production

red blood cell recycling

stoppage of bleeding

19

Which step in hemostasis involves activation of formed elements in the blood?

vascular spasm

coagulation

platelet plug formation

fibrin production

platelet plug formation

20

Which of the following represents a difference between extrinsic and intrinsic blood clotting pathways?

One is triggered by tissue damage, while the other cannot be triggered by tissue damage.

One involves calcium ions, while the other does not.

One is faster than the other.

One leads to the production of prothrombin activator and the other does not.

One is faster than the other.

21

Which of the following would NOT lead to a bleeding disorder?

thrombocytopenia

vitamin K deficiency

impaired liver function

excess calcium in the diet

excess calcium in the diet

22

A person who lacks agglutinogen A but has agglutinogen B would have blood type __________.

AB

B

O

A

B

23

Choose the incompatible transfusion.

Donate type B blood to a recipient with type O blood.

Donate type A blood to a recipient with type AB blood.

Donate type B blood to a recipient with type AB blood.

Donate type O blood to a recipient with type AB blood.

Donate type B blood to a recipient with type O blood.

24

Which ABO blood type is considered to be the universal recipient?

O

A

AB

B

AB