Question 1

Which of the following is NOT considered a formed element of blood?

Accepted Answer

Plasma protein

Question 2

A blood sample is centrifuged. Which layer contains the majority of white blood cells?

Accepted Answer

Buffy coat

Question 3

Which plasma protein is primarily responsible for maintaining osmotic pressure in the blood?

Accepted Answer

Albumin

Question 4

A patient has a hematocrit of 60%. Which of the following is most likely true?

Accepted Answer

The patient has polycythemia

Question 5

Which cell type is directly responsible for producing platelets?

Accepted Answer

Megakaryocyte

Question 6

Which of the following best describes the function of erythrocytes?

Accepted Answer

Transport oxygen and carbon dioxide

Question 7

Hemoglobin is essential for oxygen transport. Which of the following equations best represents the reversible binding of oxygen to hemoglobin?

Accepted Answer

$$\mathrm{Hb} + \mathrm{O}_2 \rightleftharpoons \mathrm{HbO}_2$$

Question 8

A person with blood type AB+ can safely receive blood from which of the following donors?

Accepted Answer

Any blood type

Question 9

Which of the following best describes the main function of neutrophils?

Accepted Answer

Phagocytize bacteria and debris

Question 10

Which leukocyte is most abundant in a normal blood smear?

Accepted Answer

Neutrophil

Question 11

A patient is exposed to a parasitic infection. Which leukocyte would you expect to be elevated?

Accepted Answer

Eosinophil

Question 12

Which of the following is the correct sequence for the three stages of hemostasis?

Accepted Answer

Vascular spasm, platelet plug formation, coagulation

Question 13

Which of the following best describes the function of lymphocytes?

Accepted Answer

Produce antibodies and mediate immune responses

Question 14

Which of the following is a characteristic of blood that helps regulate body temperature?

Accepted Answer

Ability to absorb and distribute heat

Question 15

A patient with type O- blood needs a transfusion. Which blood type is safe to administer?

Accepted Answer

O-

Question 16

Which of the following best describes the process of clot elimination after tissue repair?

Accepted Answer

Fibrinolysis

Question 17

Which of the following changes is most likely to occur in the blood as a person ages?

Accepted Answer

Decreased red bone marrow mass

Question 18

Which of the following best describes the main function of monocytes?

Accepted Answer

Differentiate into macrophages and phagocytize pathogens

Question 19

Which of the following is a physical characteristic of blood that distinguishes it from water?

Accepted Answer

Higher viscosity

Question 20

Which granulocyte is primarily involved in allergic reactions and releases histamine?

Accepted Answer

Basophil

Study Guide: Blood Anatomy & Physiology

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