Q: Which of the following equations correctly represents the calculation of hematocrit?

$$\text{Hematocrit} = \frac{\text{Volume of RBCs}}{\text{Total Blood Volume}} \times 100$$

Question 1

Which of the following best describes the primary function of albumins in blood plasma?

Accepted Answer

They help maintain osmotic pressure and transport substances.

Question 2

A patient is diagnosed with anemia due to chronic blood loss from a stomach ulcer. Which type of anemia does this patient most likely have?

Accepted Answer

Hemorrhagic anemia

Question 3

Which of the following is NOT a characteristic of red blood cells (erythrocytes)?

Accepted Answer

They have a long lifespan and contain mitochondria.

Question 4

A laboratory test shows a hematocrit of 60%. What does this indicate?

Accepted Answer

60% of the blood volume is red blood cells.

Question 5

Which plasma protein is most directly involved in the formation of blood clots?

Accepted Answer

Fibrinogen

Question 6

A patient with sickle cell anemia is experiencing severe pain and fatigue. What is the underlying cause of these symptoms?

Accepted Answer

Abnormal hemoglobin causing RBCs to change shape and block vessels

Question 7

Which of the following best explains why type O blood is considered the universal donor for red blood cell transfusions?

Accepted Answer

Type O blood lacks A and B antigens.

Question 8

Which step in hemostasis is primarily responsible for the initial reduction of blood flow after a vessel is injured?

Accepted Answer

Vasoconstriction (vascular spasm)

Question 9

A patient exposed to high levels of radiation develops a condition where their red bone marrow fails to produce enough red blood cells. What type of anemia is this?

Accepted Answer

Aplastic anemia

Question 10

Which of the following nutrients is NOT essential for the synthesis of hemoglobin in erythroblasts?

Accepted Answer

Calcium

Question 11

A patient with malaria develops hemolytic anemia. What is the mechanism behind this condition?

Accepted Answer

Destruction of red blood cells by bursting

Question 12

Which of the following statements about white blood cells (WBCs) is TRUE?

Accepted Answer

They help the body prevent and fight infections.

Question 13

Which type of white blood cell is most abundant and is the first to respond to bacterial infection?

Accepted Answer

Neutrophils

Question 14

A patient’s blood sample shows an abnormally high white blood cell count. Which condition is most likely indicated?

Accepted Answer

Leukemia

Question 15

Which process allows white blood cells to move out of blood vessels and migrate toward an infection site?

Accepted Answer

Diapedesis

Question 16

Which of the following best describes the role of bilirubin in the body?

Accepted Answer

It is a breakdown product of hemoglobin processed by the liver.

Question 17

A patient with mononucleosis is likely to have an increased number of which type of blood cell?

Accepted Answer

Lymphocytes

Question 18

Which of the following equations correctly represents the calculation of hematocrit?

Accepted Answer

$$	ext{Hematocrit} = \frac{	ext{Volume of RBCs}}{	ext{Total Blood Volume}} 	imes 100$$

Question 19

Which of the following is a correct sequence of events in hemostasis?

Accepted Answer

Vasoconstriction, platelet plug formation, blood clotting

Question 20

Which of the following best explains why vitamin B12 deficiency leads to anemia?

Accepted Answer

It impairs DNA synthesis in developing RBCs.

Blood: Structure, Function, and Clinical Relevance

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