$$\text{Hematocrit} = \frac{\text{Volume of erythrocytes}}{\text{Total blood volume}} \times 100\%$$

Question 1

Which of the following best describes the function of albumin in blood plasma?

Accepted Answer

Albumin maintains osmotic pressure, drawing water into the blood.

Question 2

A patient presents with yellowing of the skin and eyes. Laboratory tests reveal elevated bilirubin levels. Which process is most likely impaired?

Accepted Answer

Excretion of bilirubin by the liver

Question 3

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

Accepted Answer

$$	ext{Hematocrit} = \frac{	ext{Volume of erythrocytes}}{	ext{Total blood volume}} 	imes 100\%$$

Question 4

A patient with sickle cell disease experiences severe pain due to blocked blood vessels. Which of the following best explains the underlying cause?

Accepted Answer

Abnormal hemoglobin causes erythrocytes to assume a sickle shape, leading to vessel blockage and tissue ischemia.

Question 5

Which of the following white blood cells is most likely to increase in number during a parasitic infection?

Accepted Answer

Eosinophils

Question 6

During the process of hemostasis, which step immediately follows the formation of a platelet plug?

Accepted Answer

Coagulation

Question 7

A patient with hemophilia A is deficient in which coagulation factor?

Accepted Answer

Factor VIII

Question 8

Which blood type is considered the universal donor, and why?

Accepted Answer

O-; it lacks A, B, and Rh antigens, minimizing immune reactions.

Question 9

Which of the following best describes the role of thrombin in the coagulation cascade?

Accepted Answer

Thrombin converts fibrinogen into fibrin, forming the fibrin mesh.

Question 10

A patient with pernicious anemia is most likely to benefit from which treatment?

Accepted Answer

Vitamin B12 injections

Question 11

Which of the following statements about oxygen transport in blood is correct?

Accepted Answer

Most oxygen is bound to hemoglobin within erythrocytes.

Question 12

Which of the following best explains why transfusing incompatible blood can be dangerous?

Accepted Answer

Antibodies in the recipient's plasma bind to antigens on donor RBCs, causing agglutination.

Question 13

Which of the following is a correct sequence for the five phases of hemostasis?

Accepted Answer

Vascular spasm → Formation of platelet plug → Coagulation → Clot retraction → Thrombolysis

Question 14

Which of the following best describes the process of hematopoiesis?

Accepted Answer

Hematopoiesis is the process by which all formed elements of blood are produced from hematopoietic stem cells.

Question 15

A blood sample from an adult male shows a hematocrit of 35%. Which of the following best describes this finding?

Accepted Answer

The hematocrit is below the normal range, suggesting possible anemia.

Question 16

Which of the following white blood cells is characterized by a multilobed nucleus and acts as the first responder to bacterial infection?

Accepted Answer

Neutrophils

Question 17

Which of the following best describes the formation of platelets?

Accepted Answer

Platelets are formed by fragmentation of cytoplasmic arms of megakaryocytes.

Question 18

A patient with a deficiency in clotting proteins is most likely to experience which of the following?

Accepted Answer

Excessive bleeding due to impaired coagulation

Question 19

Which of the following best explains the benefit of the coagulation cascade system?

Accepted Answer

The cascade amplifies the response, ensuring rapid and regulated clot formation.

Question 20

Which blood type has A, B, and Rh antigens present on the surface of its erythrocytes?

Accepted Answer

AB+

ANP Blood Chapter Study Guide: Step-by-Step Guidance

Study Guide - Practice Questions