Q: Which of the following equations correctly represents the calculation of hematocrit ($$Hct) $$given packed cell volume ($$PCV) $$and total blood volume ($$TBV$$)?

$$Hct = \frac{PCV}{TBV} \times 100$$

Q: Which of the following equations correctly represents the relationship between hemoglobin concentration ($$[Hb]$$), oxygen-carrying capacity ($$O_2$$ capacity), and the oxygen content of blood ($$O_2$$ content)?

$$O_2$$\ content = [Hb] \times 1.34 \times $$SaO_2$$

Question 1

Which of the following best describes the primary function of erythrocytes in the cardiovascular system?

Accepted Answer

Carrying oxygen from the lungs to tissues and facilitating carbon dioxide removal

Question 2

A patient presents with fatigue, pallor, and low hematocrit. Laboratory results show a deficiency in vitamin B12. Which type of anemia is most likely present?

Accepted Answer

Pernicious anemia

Question 3

Which of the following equations correctly represents the calculation of hematocrit ($$Hct) $$given packed cell volume ($$PCV) $$and total blood volume ($$TBV$$)?

Accepted Answer

$$Hct = \frac{PCV}{TBV} 	imes 100$$

Question 4

Which plasma protein is primarily responsible for maintaining osmotic pressure and transporting substances such as hormones and fatty acids?

Accepted Answer

Albumin

Question 5

A patient with a genetic mutation resulting in abnormal hemoglobin that causes red blood cells to become crescent-shaped is most likely suffering from which disorder?

Accepted Answer

Sickle cell anemia

Question 6

Which of the following best describes the process of erythropoiesis?

Accepted Answer

The production of erythrocytes from hematopoietic stem cells in the red bone marrow

Question 7

A patient with a white blood cell count of 18,000/μL (normal: 4,000–11,000/μL) is most likely experiencing which condition?

Accepted Answer

Leukocytosis

Question 8

Which of the following is a key difference between granulocytes and agranulocytes?

Accepted Answer

Granulocytes contain visible cytoplasmic granules; agranulocytes do not

Question 9

Which step in hemostasis involves the conversion of fibrinogen to fibrin?

Accepted Answer

Coagulation

Question 10

A patient develops a thrombus in a deep vein of the leg. If a portion of this clot breaks free and travels to the lungs, what is this condition called?

Accepted Answer

Embolus

Question 11

Which of the following best explains why individuals with type O negative blood are considered universal donors?

Accepted Answer

They lack both A and B agglutinogens and the Rh antigen on their erythrocytes

Question 12

Which of the following equations correctly represents the relationship between hemoglobin concentration ($$[Hb]$$), oxygen-carrying capacity ($$O_2$$ capacity), and the oxygen content of blood ($$O_2$$ content)?

Accepted Answer

$$O_2$$\ content = [Hb] 	imes 1.34 	imes $$SaO_2$$

Question 13

A newborn develops severe jaundice and anemia shortly after birth. The mother is Rh negative and the baby is Rh positive. Which condition best explains these findings?

Accepted Answer

Erythroblastosis fetalis (hemolytic disease of the newborn)

Question 14

Which of the following endogenous factors helps limit the formation of blood clots within intact blood vessels?

Accepted Answer

Prostacyclin

Question 15

A patient with a genetic deficiency in clotting factor VIII is most likely to experience which disorder?

Accepted Answer

Hemophilia A

Question 16

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

Accepted Answer

They adhere to exposed collagen fibers and release chemicals to attract more platelets, forming a plug

Question 17

A patient with disseminated intravascular coagulation (DIC) is at risk for which of the following complications?

Accepted Answer

Simultaneous excessive clotting and bleeding

Question 18

Which of the following best describes the fate of heme after erythrocyte destruction?

Accepted Answer

It is converted to bilirubin and transported to the liver for excretion

Question 19

A patient with a bone marrow disorder resulting in decreased production of all formed elements is most likely suffering from which condition?

Accepted Answer

Aplastic anemia

Question 20

Which of the following scenarios would most likely result in a transfusion reaction?

Accepted Answer

Transfusing type A blood into a type O recipient

Blood: Structure, Function, Disorders, and Hemostasis

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