NR507/ NR 507 Exam (Latest Version) Advanced Pathophysiology |
100 Questions and 100% Verified Correct Answers| 100% Correct
|Grade A – Chamberlain
SECTION 1: Cellular Adaptation & Injury (Questions 1-10)
Question 1
A patient with chronic anemia develops cardiac enlargement. This is an example of which
type of cellular adaptation?
• A. Hyperplasia
• B. Hypertrophy
• C. Atrophy
• D. Metaplasia
• E. Dysplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy is an increase in cell size leading to organ enlargement. In
chronic anemia, the heart works harder to pump oxygen to tissues, leading to myocardial
hypertrophy. Hyperplasia is an increase in cell number. Atrophy is a decrease in cell size.
Metaplasia is replacement of one cell type with another. Dysplasia is abnormal cell
growth.
Question 2
Barrett esophagus, which occurs in response to chronic GERD, is an example of which
cellular adaptation?
• A. Hyperplasia
• B. Hypertrophy
,• C. Atrophy
• D. Metaplasia
• E. Dysplasia
Answer: D. Metaplasia
Rationale: Barrett esophagus is metaplasia where the normal squamous epithelium of
the esophagus is replaced by columnar epithelium resembling that of the intestine. This
occurs in response to chronic acid reflux (GERD). Metaplasia is a reversible adaptation
but increases the risk of adenocarcinoma.
Question 3
Which of the following is characteristic of irreversible cell injury?
• A. Cellular swelling
• B. Fatty change
• C. Nuclear pyknosis
• D. Loss of microvilli
• E. Ribosomal detachment
Answer: C. Nuclear pyknosis
Rationale: Nuclear pyknosis (nuclear shrinkage and condensation) is a hallmark of
irreversible cell injury and necrosis. Cellular swelling, fatty change, loss of microvilli, and
ribosomal detachment are all reversible changes seen in early cell injury.
Question 4
A patient with prolonged ischemia to the kidney develops acute tubular necrosis. This is
an example of which type of necrosis?
• A. Apoptosis
• B. Coagulative necrosis
• C. Liquefactive necrosis
• D. Caseous necrosis
• E. Fat necrosis
Answer: B. Coagulative necrosis
, Rationale: Coagulative necrosis is the most common type of necrosis and occurs in
ischemic injury to solid organs (kidney, heart). The cell architecture is preserved but cells
are dead. Liquefactive necrosis occurs in the brain. Caseous necrosis is seen in
tuberculosis. Fat necrosis occurs in pancreatitis.
Question 5
Which of the following cellular changes is associated with apoptosis (programmed cell
death)?
• A. Inflammation
• B. Cellular swelling
• C. Cell shrinkage
• D. Membrane rupture
• E. Nuclear fragmentation into irregular sizes
Answer: C. Cell shrinkage
Rationale: Apoptosis is programmed cell death characterized by cell shrinkage,
chromatin condensation, and formation of apoptotic bodies without inflammation.
Necrosis is characterized by cell swelling, membrane rupture, and inflammation.
Question 6
A patient with a benign tumor of the pituitary gland causing excessive growth hormone
secretion. This tumor is classified as a(n):
• A. Adenoma
• B. Carcinoma
• C. Sarcoma
• D. Lymphoma
• E. Melanoma
Answer: A. Adenoma
Rationale: Adenomas are benign tumors arising from glandular epithelium. Pituitary
adenomas are common benign tumors that can secrete hormones (e.g., growth
hormone, prolactin). Carcinomas are malignant epithelial tumors. Sarcomas are
malignant mesenchymal tumors.
, Question 7
Which of the following is a characteristic of malignant tumors?
• A. Encapsulated
• B. Well-differentiated
• C. Slow growth
• D. Invasion of surrounding tissue
• E. Does not metastasize
Answer: D. Invasion of surrounding tissue
Rationale: Malignant tumors are characterized by invasion of surrounding tissues and
metastasis. Benign tumors are encapsulated, well-differentiated, grow slowly, and do not
metastasize.
Question 8
A patient with chronic obstructive pulmonary disease (COPD) has squamous metaplasia
of the bronchial epithelium. This increases the risk of which type of cancer?
• A. Adenocarcinoma
• B. Squamous cell carcinoma
• C. Small cell carcinoma
• D. Large cell carcinoma
• E. Mesothelioma
Answer: B. Squamous cell carcinoma
Rationale: Squamous metaplasia in the bronchial epithelium increases the risk of
squamous cell carcinoma of the lung. This is commonly associated with smoking.
Adenocarcinoma is the most common lung cancer in non-smokers.
Question 9
Which of the following oncogenes is associated with amplification in breast cancer?
• A. HER2/neu
• B. RAS
100 Questions and 100% Verified Correct Answers| 100% Correct
|Grade A – Chamberlain
SECTION 1: Cellular Adaptation & Injury (Questions 1-10)
Question 1
A patient with chronic anemia develops cardiac enlargement. This is an example of which
type of cellular adaptation?
• A. Hyperplasia
• B. Hypertrophy
• C. Atrophy
• D. Metaplasia
• E. Dysplasia
Answer: B. Hypertrophy
Rationale: Hypertrophy is an increase in cell size leading to organ enlargement. In
chronic anemia, the heart works harder to pump oxygen to tissues, leading to myocardial
hypertrophy. Hyperplasia is an increase in cell number. Atrophy is a decrease in cell size.
Metaplasia is replacement of one cell type with another. Dysplasia is abnormal cell
growth.
Question 2
Barrett esophagus, which occurs in response to chronic GERD, is an example of which
cellular adaptation?
• A. Hyperplasia
• B. Hypertrophy
,• C. Atrophy
• D. Metaplasia
• E. Dysplasia
Answer: D. Metaplasia
Rationale: Barrett esophagus is metaplasia where the normal squamous epithelium of
the esophagus is replaced by columnar epithelium resembling that of the intestine. This
occurs in response to chronic acid reflux (GERD). Metaplasia is a reversible adaptation
but increases the risk of adenocarcinoma.
Question 3
Which of the following is characteristic of irreversible cell injury?
• A. Cellular swelling
• B. Fatty change
• C. Nuclear pyknosis
• D. Loss of microvilli
• E. Ribosomal detachment
Answer: C. Nuclear pyknosis
Rationale: Nuclear pyknosis (nuclear shrinkage and condensation) is a hallmark of
irreversible cell injury and necrosis. Cellular swelling, fatty change, loss of microvilli, and
ribosomal detachment are all reversible changes seen in early cell injury.
Question 4
A patient with prolonged ischemia to the kidney develops acute tubular necrosis. This is
an example of which type of necrosis?
• A. Apoptosis
• B. Coagulative necrosis
• C. Liquefactive necrosis
• D. Caseous necrosis
• E. Fat necrosis
Answer: B. Coagulative necrosis
, Rationale: Coagulative necrosis is the most common type of necrosis and occurs in
ischemic injury to solid organs (kidney, heart). The cell architecture is preserved but cells
are dead. Liquefactive necrosis occurs in the brain. Caseous necrosis is seen in
tuberculosis. Fat necrosis occurs in pancreatitis.
Question 5
Which of the following cellular changes is associated with apoptosis (programmed cell
death)?
• A. Inflammation
• B. Cellular swelling
• C. Cell shrinkage
• D. Membrane rupture
• E. Nuclear fragmentation into irregular sizes
Answer: C. Cell shrinkage
Rationale: Apoptosis is programmed cell death characterized by cell shrinkage,
chromatin condensation, and formation of apoptotic bodies without inflammation.
Necrosis is characterized by cell swelling, membrane rupture, and inflammation.
Question 6
A patient with a benign tumor of the pituitary gland causing excessive growth hormone
secretion. This tumor is classified as a(n):
• A. Adenoma
• B. Carcinoma
• C. Sarcoma
• D. Lymphoma
• E. Melanoma
Answer: A. Adenoma
Rationale: Adenomas are benign tumors arising from glandular epithelium. Pituitary
adenomas are common benign tumors that can secrete hormones (e.g., growth
hormone, prolactin). Carcinomas are malignant epithelial tumors. Sarcomas are
malignant mesenchymal tumors.
, Question 7
Which of the following is a characteristic of malignant tumors?
• A. Encapsulated
• B. Well-differentiated
• C. Slow growth
• D. Invasion of surrounding tissue
• E. Does not metastasize
Answer: D. Invasion of surrounding tissue
Rationale: Malignant tumors are characterized by invasion of surrounding tissues and
metastasis. Benign tumors are encapsulated, well-differentiated, grow slowly, and do not
metastasize.
Question 8
A patient with chronic obstructive pulmonary disease (COPD) has squamous metaplasia
of the bronchial epithelium. This increases the risk of which type of cancer?
• A. Adenocarcinoma
• B. Squamous cell carcinoma
• C. Small cell carcinoma
• D. Large cell carcinoma
• E. Mesothelioma
Answer: B. Squamous cell carcinoma
Rationale: Squamous metaplasia in the bronchial epithelium increases the risk of
squamous cell carcinoma of the lung. This is commonly associated with smoking.
Adenocarcinoma is the most common lung cancer in non-smokers.
Question 9
Which of the following oncogenes is associated with amplification in breast cancer?
• A. HER2/neu
• B. RAS
