Q: Which of the following is the correct formula for calculating hematocrit if a blood sample contains 2.5 mL of erythrocytes in a total volume of 5.5 mL?

$$\text{Hematocrit} = \frac{2.5}{5.5} \times 100$$

Question 1

Which of the following best describes the main function of erythrocytes in human blood?

Accepted Answer

Transport oxygen and help transport carbon dioxide

Question 2

A patient presents with a WBC count of 13,000/mm$$^3. $$Which condition is most likely indicated by this finding?

Accepted Answer

Leukocytosis

Question 3

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

Accepted Answer

Albumin

Question 4

A person with type O blood can safely receive blood from which of the following blood types?

Accepted Answer

Type O

Question 5

Which of the following best explains why sickle cell anemia leads to decreased oxygen delivery to tissues?

Accepted Answer

Sickled cells are abnormally shaped and block capillaries, reducing oxygen delivery

Question 6

Which of the following is a correct sequence for the abundance of leukocytes in normal blood from most to least abundant?

Accepted Answer

Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils

Question 7

A blood sample agglutinates with both anti-A and anti-B sera but not with anti-Rh serum. What is the blood type?

Accepted Answer

Type AB-

Question 8

Which of the following best describes the role of platelets in hemostasis?

Accepted Answer

They initiate the clotting process by forming a temporary plug at the site of vessel injury

Question 9

A patient with pernicious anemia is most likely to have which of the following deficiencies?

Accepted Answer

Vitamin B$$_{12}$$

Question 10

Which of the following statements about Rh incompatibility during pregnancy is correct?

Accepted Answer

Problems occur only if the mother is Rh- and the fetus is Rh+

Question 11

Which of the following best describes the function of neutrophils?

Accepted Answer

They act as phagocytes at sites of infection

Question 12

A patient is found to have a low leukocyte count after chemotherapy. Which term best describes this condition?

Accepted Answer

Leukopenia

Question 13

Which of the following is a characteristic of lymphocytes?

Accepted Answer

They have a spherical nucleus and play a key role in the immune response

Question 14

A person with blood type B has which of the following antibodies in their plasma?

Accepted Answer

Anti-A

Question 15

Which of the following best explains why type AB individuals are considered universal recipients?

Accepted Answer

They lack both anti-A and anti-B antibodies

Question 16

Which of the following is a likely consequence of a rapid loss of 35% of total blood volume?

Accepted Answer

Shock, which can be fatal

Question 17

Which of the following best describes the difference between granulocytes and agranulocytes?

Accepted Answer

Granulocytes have granules in their cytoplasm that can be stained

Question 18

A patient with a genetic defect causing abnormal hemoglobin that results in sickle-shaped erythrocytes is most likely to have which condition?

Accepted Answer

Sickle cell anemia

Question 19

Which of the following is the correct formula for calculating hematocrit if a blood sample contains 2.5 mL of erythrocytes in a total volume of 5.5 mL?

Accepted Answer

$$	ext{Hematocrit} = \frac{2.5}{5.5} 	imes 100$$

Question 20

Which of the following best describes the function of monocytes?

Accepted Answer

They function as macrophages and are important in fighting chronic infection

Chapter 10 – Blood: Composition, Functions, and Clinical Aspects

Study Guide - Practice Questions

Study Guide - Flashcards