HESI Pathophysiology Test Bank 2027–2027 |
120 Verified & Real Exam Questions with
100% Correct Answers + Detailed Rationales
Section I: Cellular Function, Injury, and Adaptation
1. A client undergoes a biopsy of the cervix, and the report indicates the
presence of cells that are abnormal in size, shape, and arrangement but have
not invaded the basement membrane. Which term best describes this finding?
A. Dysplasia
B. Metaplasia
C. Anaplasia
D. Neoplasia
Correct Answer: A. Dysplasia
Rationale: Dysplasia refers to abnormal changes in the size, shape, and
organization of mature cells. It is often a precursor to malignancy but is potentially
reversible and does not invade the basement membrane. Metaplasia is the
reversible replacement of one mature cell type with another. Anaplasia refers to a
loss of cellular differentiation, characteristic of malignant cells. Neoplasia refers to
new, uncontrolled cell growth (tumor formation).
2. Which cellular adaptation is characterized by an increase in the number of
cells in an organ or tissue?
A. Hypertrophy
B. Hyperplasia
C. Atrophy
D. Metaplasia
Correct Answer: B. Hyperplasia
, Rationale: Hyperplasia is an increase in the number of cells in a tissue or
organ, often in response to hormonal stimulation or chronic irritation. Hypertrophy
is an increase in cell size. Atrophy is a decrease in cell size. Metaplasia is the
replacement of one cell type with another.
3. A client with chronic hypertension develops thickening of the left
ventricular wall. This is an example of which cellular adaptation?
A. Atrophy
B. Hyperplasia
C. Hypertrophy
D. Dysplasia
Correct Answer: C. Hypertrophy
Rationale: Hypertrophy is an increase in the size of cells, leading to an
increase in the size of the affected organ. In chronic hypertension, the left ventricle
must work harder to pump against increased resistance, leading to compensatory
hypertrophy of the myocardial cells. Hyperplasia involves an increase in cell
number and is uncommon in cardiac muscle.
4. Which of the following is the most common cause of cellular injury?
A. Hypoxia
B. Radiation
C. Chemical exposure
D. Infection
Correct Answer: A. Hypoxia
Rationale: Hypoxia (oxygen deprivation) is the most common and clinically
significant cause of cellular injury and cell death. Without oxygen, oxidative
phosphorylation ceases, ATP production falls, and the sodium-potassium pump
fails, leading to cellular swelling and eventually necrosis. While radiation,
chemicals, and infection can all cause injury, hypoxia is the most common.
,5. A client experiences a myocardial infarction. Which type of cell death is
most likely occurring in the affected cardiac tissue?
A. Apoptosis
B. Necrosis
C. Autophagy
D. Dysplasia
Correct Answer: B. Necrosis
Rationale: Necrosis is premature, unregulated cell death resulting from severe
injury such as ischemia (as in myocardial infarction). It is characterized by cellular
swelling, rupture of the cell membrane, and an inflammatory response. Apoptosis
is programmed, regulated cell death that does not typically incite inflammation.
6. Which intracellular accumulation is most commonly associated with alcohol
abuse?
A. Glycogen
B. Fat (steatosis)
C. Hemosiderin
D. Melanin
Correct Answer: B. Fat (steatosis)
Rationale: Alcohol abuse leads to abnormal accumulation of fat (triglycerides)
within hepatocytes, a condition known as hepatic steatosis or fatty liver. This
occurs because alcohol metabolism disrupts normal lipid metabolism, increasing
fat synthesis and decreasing fat oxidation and export.
7. A client with a vitamin B12 deficiency is most at risk for which type of
anemia?
A. Microcytic, hypochromic anemia
B. Normocytic, normochromic anemia
, C. Macrocytic, hyperchromic anemia
D. Macrocytic, normochromic anemia
Correct Answer: D. Macrocytic, normochromic anemia
Rationale: Vitamin B12 deficiency impairs DNA synthesis, leading to
impaired nuclear maturation while cytoplasmic development continues. This
results in larger-than-normal red blood cells (macrocytic) that are normochromic
(normal hemoglobin content per cell). This is classified as a macrocytic,
normochromic anemia (megaloblastic anemia).
8. Which of the following best describes the process of apoptosis?
A. Uncontrolled cell death with inflammation
B. Programmed cell death without inflammation
C. Cell swelling and lysis
D. Abnormal cell growth and invasion
Correct Answer: B. Programmed cell death without inflammation
Rationale: Apoptosis is a genetically programmed, regulated form of cell
death that eliminates unwanted or damaged cells without triggering an
inflammatory response. It is characterized by cell shrinkage, chromatin
condensation, and formation of apoptotic bodies that are phagocytosed by
neighboring cells.
9. A client with a history of chronic gastroesophageal reflux disease (GERD)
develops Barrett's esophagus. This is an example of which cellular
adaptation?
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Correct Answer: C. Metaplasia
120 Verified & Real Exam Questions with
100% Correct Answers + Detailed Rationales
Section I: Cellular Function, Injury, and Adaptation
1. A client undergoes a biopsy of the cervix, and the report indicates the
presence of cells that are abnormal in size, shape, and arrangement but have
not invaded the basement membrane. Which term best describes this finding?
A. Dysplasia
B. Metaplasia
C. Anaplasia
D. Neoplasia
Correct Answer: A. Dysplasia
Rationale: Dysplasia refers to abnormal changes in the size, shape, and
organization of mature cells. It is often a precursor to malignancy but is potentially
reversible and does not invade the basement membrane. Metaplasia is the
reversible replacement of one mature cell type with another. Anaplasia refers to a
loss of cellular differentiation, characteristic of malignant cells. Neoplasia refers to
new, uncontrolled cell growth (tumor formation).
2. Which cellular adaptation is characterized by an increase in the number of
cells in an organ or tissue?
A. Hypertrophy
B. Hyperplasia
C. Atrophy
D. Metaplasia
Correct Answer: B. Hyperplasia
, Rationale: Hyperplasia is an increase in the number of cells in a tissue or
organ, often in response to hormonal stimulation or chronic irritation. Hypertrophy
is an increase in cell size. Atrophy is a decrease in cell size. Metaplasia is the
replacement of one cell type with another.
3. A client with chronic hypertension develops thickening of the left
ventricular wall. This is an example of which cellular adaptation?
A. Atrophy
B. Hyperplasia
C. Hypertrophy
D. Dysplasia
Correct Answer: C. Hypertrophy
Rationale: Hypertrophy is an increase in the size of cells, leading to an
increase in the size of the affected organ. In chronic hypertension, the left ventricle
must work harder to pump against increased resistance, leading to compensatory
hypertrophy of the myocardial cells. Hyperplasia involves an increase in cell
number and is uncommon in cardiac muscle.
4. Which of the following is the most common cause of cellular injury?
A. Hypoxia
B. Radiation
C. Chemical exposure
D. Infection
Correct Answer: A. Hypoxia
Rationale: Hypoxia (oxygen deprivation) is the most common and clinically
significant cause of cellular injury and cell death. Without oxygen, oxidative
phosphorylation ceases, ATP production falls, and the sodium-potassium pump
fails, leading to cellular swelling and eventually necrosis. While radiation,
chemicals, and infection can all cause injury, hypoxia is the most common.
,5. A client experiences a myocardial infarction. Which type of cell death is
most likely occurring in the affected cardiac tissue?
A. Apoptosis
B. Necrosis
C. Autophagy
D. Dysplasia
Correct Answer: B. Necrosis
Rationale: Necrosis is premature, unregulated cell death resulting from severe
injury such as ischemia (as in myocardial infarction). It is characterized by cellular
swelling, rupture of the cell membrane, and an inflammatory response. Apoptosis
is programmed, regulated cell death that does not typically incite inflammation.
6. Which intracellular accumulation is most commonly associated with alcohol
abuse?
A. Glycogen
B. Fat (steatosis)
C. Hemosiderin
D. Melanin
Correct Answer: B. Fat (steatosis)
Rationale: Alcohol abuse leads to abnormal accumulation of fat (triglycerides)
within hepatocytes, a condition known as hepatic steatosis or fatty liver. This
occurs because alcohol metabolism disrupts normal lipid metabolism, increasing
fat synthesis and decreasing fat oxidation and export.
7. A client with a vitamin B12 deficiency is most at risk for which type of
anemia?
A. Microcytic, hypochromic anemia
B. Normocytic, normochromic anemia
, C. Macrocytic, hyperchromic anemia
D. Macrocytic, normochromic anemia
Correct Answer: D. Macrocytic, normochromic anemia
Rationale: Vitamin B12 deficiency impairs DNA synthesis, leading to
impaired nuclear maturation while cytoplasmic development continues. This
results in larger-than-normal red blood cells (macrocytic) that are normochromic
(normal hemoglobin content per cell). This is classified as a macrocytic,
normochromic anemia (megaloblastic anemia).
8. Which of the following best describes the process of apoptosis?
A. Uncontrolled cell death with inflammation
B. Programmed cell death without inflammation
C. Cell swelling and lysis
D. Abnormal cell growth and invasion
Correct Answer: B. Programmed cell death without inflammation
Rationale: Apoptosis is a genetically programmed, regulated form of cell
death that eliminates unwanted or damaged cells without triggering an
inflammatory response. It is characterized by cell shrinkage, chromatin
condensation, and formation of apoptotic bodies that are phagocytosed by
neighboring cells.
9. A client with a history of chronic gastroesophageal reflux disease (GERD)
develops Barrett's esophagus. This is an example of which cellular
adaptation?
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Correct Answer: C. Metaplasia
