Chamberlain University NR-283 Pathophysiology Final Exam (pdf) |
2026/27 | Pathophysiology Q&A | Pathophysiology
1. Which of the following best describes the study of pathophysiology?
A) The laboratory analysis of tissue samples to diagnose disease
B) The study of functional or physiologic changes in the body that result from
disease processes
C) The examination of psychological factors that contribute to illness
D) The investigation of the cause and incidence of disease in a population
Correct Answer: The study of functional or physiologic changes in the body
that result from disease processes
Rationale: Pathophysiology focuses on the functional and physiological
changes that occur in the body as a result of disease. This distinguishes it
from pathology, which is the study of structural changes at the tissue level.
Etiology is the study of the cause of disease, and epidemiology is the study
of disease patterns in populations.
2. A patient with long-standing hypertension develops thickening of the heart
muscle. This represents which type of cellular adaptation?
A) Atrophy
B) Metaplasia
C) Hyperplasia
D) Hypertrophy
Correct Answer: Hypertrophy
Rationale: Hypertrophy is an increase in the size of individual cells, leading to
an increase in tissue mass. The heart muscle cells enlarge in response to the
increased workload caused by hypertension. Atrophy is a decrease in cell
,size, metaplasia is the replacement of one cell type with another, and
hyperplasia is an increase in cell number.
3. A pathologist reports abnormal changes in the size, shape, and
organization of cells in a cervical tissue sample. This finding is most
consistent with:
A) Metaplasia
B) Anaplasia
C) Hypertrophy
D) Dysplasia
Correct Answer: Dysplasia
Rationale: Dysplasia is characterized by abnormal changes in cell size,
shape, and organization. It is considered a precancerous condition and is
often detected on a Pap smear. Metaplasia is the replacement of one mature
cell type with another, hypertrophy is an increase in cell size, and anaplasia
is a loss of cell differentiation, characteristic of malignant cells.
4. A patient who has been on bed rest for several weeks develops muscle
wasting. This is an example of which cellular adaptation?
A) Hypertrophy
B) Hyperplasia
C) Atrophy
D) Dysplasia
Correct Answer: Atrophy
,Rationale: Atrophy is a decrease in cell size, resulting in reduced tissue mass.
Muscle wasting from disuse, such as prolonged bed rest or immobilization, is
a classic example of atrophy.
5. A chronic smoker undergoes a bronchoscopy, and the biopsy shows that
normal ciliated columnar epithelial cells in the trachea have been replaced
by stratified squamous epithelial cells. This represents which cellular
adaptation?
A) Dysplasia
B) Anaplasia
C) Metaplasia
D) Hyperplasia
Correct Answer: Metaplasia
Rationale: Metaplasia is the reversible replacement of one mature cell type
by another mature cell type, usually in response to chronic irritation or
inflammation. The change from ciliated columnar to stratified squamous
epithelium is a classic example of metaplasia in the respiratory tract of
smokers.
6. A patient experiences a myocardial infarction (heart attack). The resulting
cell death due to lack of oxygen is best described as:
A) Apoptosis
B) Necrosis
C) Atrophy
D) Metaplasia
Correct Answer: Necrosis
, Rationale: Necrosis is cell death caused by external factors such as injury,
infection, or lack of blood flow (ischemia). A myocardial infarction leads to
coagulative necrosis of the heart muscle. Apoptosis is programmed cell
death.
7. A patient with a brain infarction (stroke) develops liquefaction of the
affected brain tissue. This type of necrosis is known as:
A) Coagulative necrosis
B) Caseous necrosis
C) Fat necrosis
D) Liquefactive necrosis
Correct Answer: Liquefactive necrosis
Rationale: Liquefactive necrosis occurs in the brain following infarction,
where the tissue becomes soft, liquefies, and is removed by phagocytes.
Coagulative necrosis is typical in solid organs like the heart or kidney.
8. The maintenance of a relatively stable internal environment regardless of
external changes is known as:
A) Metabolism
B) Homeostasis
C) Etiology
D) Pathogenesis
Correct Answer: Homeostasis
Rationale: Homeostasis is the maintenance of a relatively stable internal
environment of the body despite external changes. It is a fundamental
concept in pathophysiology and is regulated by negative feedback loops.
2026/27 | Pathophysiology Q&A | Pathophysiology
1. Which of the following best describes the study of pathophysiology?
A) The laboratory analysis of tissue samples to diagnose disease
B) The study of functional or physiologic changes in the body that result from
disease processes
C) The examination of psychological factors that contribute to illness
D) The investigation of the cause and incidence of disease in a population
Correct Answer: The study of functional or physiologic changes in the body
that result from disease processes
Rationale: Pathophysiology focuses on the functional and physiological
changes that occur in the body as a result of disease. This distinguishes it
from pathology, which is the study of structural changes at the tissue level.
Etiology is the study of the cause of disease, and epidemiology is the study
of disease patterns in populations.
2. A patient with long-standing hypertension develops thickening of the heart
muscle. This represents which type of cellular adaptation?
A) Atrophy
B) Metaplasia
C) Hyperplasia
D) Hypertrophy
Correct Answer: Hypertrophy
Rationale: Hypertrophy is an increase in the size of individual cells, leading to
an increase in tissue mass. The heart muscle cells enlarge in response to the
increased workload caused by hypertension. Atrophy is a decrease in cell
,size, metaplasia is the replacement of one cell type with another, and
hyperplasia is an increase in cell number.
3. A pathologist reports abnormal changes in the size, shape, and
organization of cells in a cervical tissue sample. This finding is most
consistent with:
A) Metaplasia
B) Anaplasia
C) Hypertrophy
D) Dysplasia
Correct Answer: Dysplasia
Rationale: Dysplasia is characterized by abnormal changes in cell size,
shape, and organization. It is considered a precancerous condition and is
often detected on a Pap smear. Metaplasia is the replacement of one mature
cell type with another, hypertrophy is an increase in cell size, and anaplasia
is a loss of cell differentiation, characteristic of malignant cells.
4. A patient who has been on bed rest for several weeks develops muscle
wasting. This is an example of which cellular adaptation?
A) Hypertrophy
B) Hyperplasia
C) Atrophy
D) Dysplasia
Correct Answer: Atrophy
,Rationale: Atrophy is a decrease in cell size, resulting in reduced tissue mass.
Muscle wasting from disuse, such as prolonged bed rest or immobilization, is
a classic example of atrophy.
5. A chronic smoker undergoes a bronchoscopy, and the biopsy shows that
normal ciliated columnar epithelial cells in the trachea have been replaced
by stratified squamous epithelial cells. This represents which cellular
adaptation?
A) Dysplasia
B) Anaplasia
C) Metaplasia
D) Hyperplasia
Correct Answer: Metaplasia
Rationale: Metaplasia is the reversible replacement of one mature cell type
by another mature cell type, usually in response to chronic irritation or
inflammation. The change from ciliated columnar to stratified squamous
epithelium is a classic example of metaplasia in the respiratory tract of
smokers.
6. A patient experiences a myocardial infarction (heart attack). The resulting
cell death due to lack of oxygen is best described as:
A) Apoptosis
B) Necrosis
C) Atrophy
D) Metaplasia
Correct Answer: Necrosis
, Rationale: Necrosis is cell death caused by external factors such as injury,
infection, or lack of blood flow (ischemia). A myocardial infarction leads to
coagulative necrosis of the heart muscle. Apoptosis is programmed cell
death.
7. A patient with a brain infarction (stroke) develops liquefaction of the
affected brain tissue. This type of necrosis is known as:
A) Coagulative necrosis
B) Caseous necrosis
C) Fat necrosis
D) Liquefactive necrosis
Correct Answer: Liquefactive necrosis
Rationale: Liquefactive necrosis occurs in the brain following infarction,
where the tissue becomes soft, liquefies, and is removed by phagocytes.
Coagulative necrosis is typical in solid organs like the heart or kidney.
8. The maintenance of a relatively stable internal environment regardless of
external changes is known as:
A) Metabolism
B) Homeostasis
C) Etiology
D) Pathogenesis
Correct Answer: Homeostasis
Rationale: Homeostasis is the maintenance of a relatively stable internal
environment of the body despite external changes. It is a fundamental
concept in pathophysiology and is regulated by negative feedback loops.
