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

Question 1

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

Accepted Answer

Maintains osmotic pressure of blood and helps transport hormones, fatty acids, and other substances

Question 2

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

Accepted Answer

The percentage of whole blood volume made up of red blood cells is higher than normal

Question 3

Which equation correctly represents the calculation of hematocrit?

Accepted Answer

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

Question 4

Which of the following blood types is considered the universal donor?

Accepted Answer

O-

Question 5

What is the primary role of fibrinogen in the blood?

Accepted Answer

Can be converted to insoluble fibrin during the clotting process

Question 6

Red blood cells have a biconcave shape. What is the main advantage of this shape?

Accepted Answer

It allows for increased surface area for efficient gas exchange and flexibility to squeeze through narrow capillaries

Question 7

Which of the following is the correct normal pH range for blood?

Accepted Answer

$$7.35 - 7.45$$

Question 8

A patient is found to have a deficiency in neutrophils. Which of the following would most likely be impaired?

Accepted Answer

First defense against bacterial infection due to reduced phagocytosis

Question 9

Which of the following white blood cells is most abundant in the bloodstream?

Accepted Answer

Neutrophils

Question 10

Which of the following statements about hemoglobin is correct?

Accepted Answer

It consists of two alpha and two beta polypeptide chains and binds oxygen to the iron atom in the heme group

Question 11

Which organ is primarily responsible for breaking down old red blood cells?

Accepted Answer

Spleen

Question 12

Which of the following is the correct lifespan of a typical red blood cell?

Accepted Answer

$$120$$ days

Question 13

Which of the following is NOT a function of platelets?

Accepted Answer

Transporting oxygen

Question 14

Which hormone stimulates the process of red blood cell formation?

Accepted Answer

Erythropoietin

Question 15

Which of the following is the correct order of abundance of leukocytes in the bloodstream from most to least?

Accepted Answer

Neutrophils \u003e Lymphocytes \u003e Monocytes \u003e Eosinophils \u003e Basophils

Question 16

Which of the following surface antigens are important to consider during blood transfusions?

Accepted Answer

A, B, and Rh

Question 17

Which type of lymphocyte is responsible for cell-mediated immunity?

Accepted Answer

T cells

Question 18

Which of the following is the process of white blood cell formation?

Accepted Answer

Leukopoiesis

Question 19

Which plasma protein is primarily responsible for immune defense by producing antibodies?

Accepted Answer

Globulins

Question 20

Which of the following statements about basophils is correct?

Accepted Answer

They contain histamine and heparin, which act as anticoagulants and increase capillary permeability

Blood: Structure, Components, and Functions – Study Notes for Anatomy & Physiology

Study Guide - Practice Questions