NURS 611 EXAM 1
Question 1:
What is the primary mechanism by which cellular injury occurs due to hypoxia?
A. Increased ATP production
B. Decreased ATP production
C. Enhanced cellular respiration
D. Increased cell membrane integrity
Answer: B. Decreased ATP production
Question 2:
Which of the following best describes the process of apoptosis?
,A. Uncontrolled cell division
B. Accidental cell death due to injury
C. Programmed cell death that is orderly and energy-dependent
D. Cell swelling and bursting due to osmotic imbalance
Answer: C. Programmed cell death that is orderly and energy-dependent
Question 3:
What is the role of cytokines in the inflammatory response?
A. They serve as antibodies to fight infection.
B. They help in the coagulation of blood.
C. They act as signaling molecules to recruit immune cells to the site of
inflammation.
D. They reduce the permeability of blood vessels.
Answer: C. They act as signaling molecules to recruit immune cells to the site of
inflammation.
Question 4:
Which of the following is a characteristic feature of necrosis?
A. DNA fragmentation
B. Cell shrinkage
C. Inflammation in surrounding tissue
D. Formation of apoptotic bodies
Answer: C. Inflammation in surrounding tissue
Question 5:
Which type of hypersensitivity reaction is mediated by IgE antibodies?
A. Type I
B. Type II
C. Type III
,D. Type IV
Answer: A. Type I
Question 6:
Which of the following is a hallmark sign of chronic inflammation?
A. Edema
B. Erythema
C. Granuloma formation
D. Fever
Answer: C. Granuloma formation
Question 7:
What is the most common cause of myocardial infarction?
A. Coronary artery vasospasm
B. Atherosclerotic plaque rupture with thrombosis
C. Viral infection
D. Hypotension
Answer: B. Atherosclerotic plaque rupture with thrombosis
Question 8:
Which statement best describes a metaplasia?
A. Abnormal proliferation of cells
B. Replacement of one cell type with another
C. Malignant transformation of cells
D. Programmed cell death
Answer: B. Replacement of one cell type with another
Question 9:
, Which of the following is a key feature of malignant tumors?
A. Well-differentiated cells
B. Slow growth
C. Invasion and metastasis
D. Encapsulation
Answer: C. Invasion and metastasis
Question 10:
Which electrolyte imbalance is most commonly associated with cardiac arrhythmias?
A. Hypokalemia
B. Hypercalcemia
C. Hypermagnesemia
D. Hypophosphatemia
Answer: A. HypokalemiaQuestion 11:
Which of the following is the primary mechanism of action for corticosteroids in
reducing inflammation?
A. Inhibiting cyclooxygenase enzymes
B. Stabilizing mast cell membranes
C. Suppressing the immune response by inhibiting cytokine production
D. Blocking histamine receptors
Answer: C. Suppressing the immune response by inhibiting cytokine production
Question 12:
Which pathophysiological process is primarily involved in the development of
chronic obstructive pulmonary disease (COPD)?
A. Airway hyperreactivity
B. Destruction of alveolar walls and loss of elastic recoil
C. Increased production of surfactant
D. Excessive mucus production in the trachea
Question 1:
What is the primary mechanism by which cellular injury occurs due to hypoxia?
A. Increased ATP production
B. Decreased ATP production
C. Enhanced cellular respiration
D. Increased cell membrane integrity
Answer: B. Decreased ATP production
Question 2:
Which of the following best describes the process of apoptosis?
,A. Uncontrolled cell division
B. Accidental cell death due to injury
C. Programmed cell death that is orderly and energy-dependent
D. Cell swelling and bursting due to osmotic imbalance
Answer: C. Programmed cell death that is orderly and energy-dependent
Question 3:
What is the role of cytokines in the inflammatory response?
A. They serve as antibodies to fight infection.
B. They help in the coagulation of blood.
C. They act as signaling molecules to recruit immune cells to the site of
inflammation.
D. They reduce the permeability of blood vessels.
Answer: C. They act as signaling molecules to recruit immune cells to the site of
inflammation.
Question 4:
Which of the following is a characteristic feature of necrosis?
A. DNA fragmentation
B. Cell shrinkage
C. Inflammation in surrounding tissue
D. Formation of apoptotic bodies
Answer: C. Inflammation in surrounding tissue
Question 5:
Which type of hypersensitivity reaction is mediated by IgE antibodies?
A. Type I
B. Type II
C. Type III
,D. Type IV
Answer: A. Type I
Question 6:
Which of the following is a hallmark sign of chronic inflammation?
A. Edema
B. Erythema
C. Granuloma formation
D. Fever
Answer: C. Granuloma formation
Question 7:
What is the most common cause of myocardial infarction?
A. Coronary artery vasospasm
B. Atherosclerotic plaque rupture with thrombosis
C. Viral infection
D. Hypotension
Answer: B. Atherosclerotic plaque rupture with thrombosis
Question 8:
Which statement best describes a metaplasia?
A. Abnormal proliferation of cells
B. Replacement of one cell type with another
C. Malignant transformation of cells
D. Programmed cell death
Answer: B. Replacement of one cell type with another
Question 9:
, Which of the following is a key feature of malignant tumors?
A. Well-differentiated cells
B. Slow growth
C. Invasion and metastasis
D. Encapsulation
Answer: C. Invasion and metastasis
Question 10:
Which electrolyte imbalance is most commonly associated with cardiac arrhythmias?
A. Hypokalemia
B. Hypercalcemia
C. Hypermagnesemia
D. Hypophosphatemia
Answer: A. HypokalemiaQuestion 11:
Which of the following is the primary mechanism of action for corticosteroids in
reducing inflammation?
A. Inhibiting cyclooxygenase enzymes
B. Stabilizing mast cell membranes
C. Suppressing the immune response by inhibiting cytokine production
D. Blocking histamine receptors
Answer: C. Suppressing the immune response by inhibiting cytokine production
Question 12:
Which pathophysiological process is primarily involved in the development of
chronic obstructive pulmonary disease (COPD)?
A. Airway hyperreactivity
B. Destruction of alveolar walls and loss of elastic recoil
C. Increased production of surfactant
D. Excessive mucus production in the trachea
