1
NR507 Final Exam Actual Exam 2026/2027 | NR 507
Week 8 Advanced Pathophysiology Complete Test
Bank with Verified Questions & Answers |
Chamberlain University | A+ Graded
Complete Chamberlain Graduate Nursing Pathophysiology Final Exam Prep
SECTION 1: CELLULAR CONCEPTS & GENETICS
Q1: A 60-year-old male with a 40-year history of smoking undergoes a bronchoscopy. Biopsy
results show abnormal cellular changes including variation in cell size and shape, increased
nuclear-to-cytoplasmic ratio, and loss of normal tissue organization. These changes are
characteristic of:
A. Metaplasia
B. Dysplasia. [CORRECT]
C. Hyperplasia
D. Anaplasia
Correct Answer: B
Rationale: Dysplasia is characterized by abnormal cellular changes including pleomorphism
(variation in size/shape), hyperchromatic nuclei, increased nuclear-to-cytoplasmic ratio, and
disordered tissue organization (B). Metaplasia (A) is replacement of one cell type with another.
Hyperplasia (C) is increased cell number. Anaplasia (D) is loss of differentiation seen in
malignancy but is more severe than dysplasia.
Q2: A patient with chronic hypertension develops left ventricular hypertrophy. This cellular
adaptation represents:
A. Atrophy due to decreased workload
B. Hyperplasia from hormonal stimulation
C. Hypertrophy in response to increased mechanical demand. [CORRECT]
D. Metaplasia from chronic irritation
Correct Answer: C
,2
Rationale: Hypertrophy is an increase in cell size resulting in enlarged tissue mass, commonly
occurring in cardiac muscle in response to increased mechanical demand from chronic
hypertension (C). Atrophy (A) is decrease in cell size. Hyperplasia (B) involves increased cell
number, rare in cardiac muscle. Metaplasia (D) is change in cell type, not applicable here.
Q3: A 45-year-old woman presents with acute abdominal pain. CT scan reveals a segment of
small intestine with dark, shrunken appearance and preserved tissue architecture. The pathologist
confirms coagulative necrosis. This type of necrosis is most commonly associated with:
A. Cerebral infarction
B. Ischemia in solid organs except brain. [CORRECT]
C. Tuberculosis infection
D. Acute pancreatitis
Correct Answer: B
Rationale: Coagulative necrosis results from ischemia in all solid organs except the brain,
characterized by preserved tissue architecture but loss of nuclei and cytoplasmic details (B).
Cerebral infarction (A) causes liquefactive necrosis. Tuberculosis (C) causes caseous necrosis.
Acute pancreatitis (D) causes fat necrosis.
Q4: A patient with systemic lupus erythematosus has elevated anti-double stranded DNA
antibodies. The mechanism of cellular death primarily responsible for the clearance of these self-
reactive cells during normal immune development is:
A. Necrosis from ATP depletion
B. Apoptosis through caspase activation. [CORRECT]
C. Pyroptosis via inflammasome activation
D. Ferroptosis from iron-dependent lipid peroxidation
Correct Answer: B
Rationale: Apoptosis is programmed cell death essential for immune system development and
removal of self-reactive lymphocytes, mediated by caspase activation and characterized by cell
shrinkage and chromatin condensation without inflammation (B). Necrosis (A) is unprogrammed
cell death with inflammation. Pyroptosis (C) and ferroptosis (D) are specialized cell death
mechanisms not primarily responsible for immune tolerance.
Q5: During the inflammatory response, a patient develops increased vascular permeability and
edema at the site of tissue injury. This is primarily mediated by:
A. Histamine and bradykinin causing endothelial contraction. [CORRECT]
,3
B. Prostaglandins causing vasoconstriction
C. Leukotrienes promoting chemotaxis only
D. Complement C3a stimulating pain fibers
Correct Answer: A
Rationale: Increased vascular permeability in acute inflammation is mediated primarily by
histamine and bradykinin, which cause endothelial cell contraction and gap formation between
cells (A). Prostaglandins (B) mediate pain and vasodilation. Leukotrienes (C) promote
chemotaxis and bronchoconstriction. C3a (D) is an anaphylatoxin causing mast cell
degranulation.
Q6: A 28-year-old male sustains a deep laceration on his thigh. The wound is left open to heal
from the bottom up. This process represents:
A. Primary intention healing with minimal scarring
B. Secondary intention healing with granulation tissue formation. [CORRECT]
C. Tertiary intention with delayed surgical closure
D. Contracture without epithelialization
Correct Answer: B
Rationale: Secondary intention healing occurs when wound edges cannot be approximated,
requiring granulation tissue formation, wound contraction, and epithelialization from the wound
margins (B). Primary intention (A) involves approximated wound edges. Tertiary intention (C) is
delayed primary closure. Contracture (D) is a complication, not a healing mechanism.
Q7: A newborn is diagnosed with cystic fibrosis. The genetic pattern of inheritance and the
underlying cellular defect involve:
A. Autosomal dominant inheritance with chloride channel dysfunction
B. Autosomal recessive inheritance with defective CFTR protein. [CORRECT]
C. X-linked recessive inheritance with lysosomal enzyme deficiency
D. Mitochondrial inheritance with oxidative phosphorylation defect
Correct Answer: B
Rationale: Cystic fibrosis follows autosomal recessive inheritance with mutations in the CFTR
gene on chromosome 7, resulting in defective chloride transport and thick mucus secretions (B).
It is not autosomal dominant (A), X-linked (C), or mitochondrial (D).
, 4
Q8: A 35-year-old woman with a history of breast cancer undergoes genetic testing and is found
to have a BRCA1 mutation. The pathophysiological significance of this mutation involves:
A. Defective DNA repair mechanisms and increased cancer susceptibility. [CORRECT]
B. Overactive proto-oncogenes causing uncontrolled proliferation
C. Defective apoptosis signaling only
D. Enhanced immune surveillance against tumor cells
Correct Answer: A
Rationale: BRCA1 is a tumor suppressor gene involved in DNA repair mechanisms, particularly
double-strand break repair; mutations result in defective DNA repair and increased susceptibility
to breast and ovarian cancer (A). It does not involve proto-oncogene overactivity (B), defective
apoptosis only (C), or immune surveillance (D).
Q9: A patient with chronic hepatitis develops hepatic encephalopathy. The accumulation of
which substance is most responsible for the neurological manifestations?
A. Bilirubin
B. Ammonia. [CORRECT]
C. Lactic acid
D. Ketone bodies
Correct Answer: B
Rationale: Hepatic encephalopathy is primarily caused by elevated blood ammonia levels due to
impaired hepatic detoxification; ammonia crosses the blood-brain barrier causing astrocyte
swelling and neurotransmitter disturbances (B). Bilirubin (A) causes jaundice. Lactic acid (C)
and ketone bodies (D) are not primary mediators of hepatic encephalopathy.
Q10: A 50-year-old male with emphysema has α1-antitrypsin deficiency. This genetic disorder
represents:
A. Autosomal dominant structural protein defect
B. Autosomal recessive enzyme inhibitor deficiency. [CORRECT]
C. X-linked coagulation factor deficiency
D. Mitochondrial metabolic disorder
Correct Answer: B
NR507 Final Exam Actual Exam 2026/2027 | NR 507
Week 8 Advanced Pathophysiology Complete Test
Bank with Verified Questions & Answers |
Chamberlain University | A+ Graded
Complete Chamberlain Graduate Nursing Pathophysiology Final Exam Prep
SECTION 1: CELLULAR CONCEPTS & GENETICS
Q1: A 60-year-old male with a 40-year history of smoking undergoes a bronchoscopy. Biopsy
results show abnormal cellular changes including variation in cell size and shape, increased
nuclear-to-cytoplasmic ratio, and loss of normal tissue organization. These changes are
characteristic of:
A. Metaplasia
B. Dysplasia. [CORRECT]
C. Hyperplasia
D. Anaplasia
Correct Answer: B
Rationale: Dysplasia is characterized by abnormal cellular changes including pleomorphism
(variation in size/shape), hyperchromatic nuclei, increased nuclear-to-cytoplasmic ratio, and
disordered tissue organization (B). Metaplasia (A) is replacement of one cell type with another.
Hyperplasia (C) is increased cell number. Anaplasia (D) is loss of differentiation seen in
malignancy but is more severe than dysplasia.
Q2: A patient with chronic hypertension develops left ventricular hypertrophy. This cellular
adaptation represents:
A. Atrophy due to decreased workload
B. Hyperplasia from hormonal stimulation
C. Hypertrophy in response to increased mechanical demand. [CORRECT]
D. Metaplasia from chronic irritation
Correct Answer: C
,2
Rationale: Hypertrophy is an increase in cell size resulting in enlarged tissue mass, commonly
occurring in cardiac muscle in response to increased mechanical demand from chronic
hypertension (C). Atrophy (A) is decrease in cell size. Hyperplasia (B) involves increased cell
number, rare in cardiac muscle. Metaplasia (D) is change in cell type, not applicable here.
Q3: A 45-year-old woman presents with acute abdominal pain. CT scan reveals a segment of
small intestine with dark, shrunken appearance and preserved tissue architecture. The pathologist
confirms coagulative necrosis. This type of necrosis is most commonly associated with:
A. Cerebral infarction
B. Ischemia in solid organs except brain. [CORRECT]
C. Tuberculosis infection
D. Acute pancreatitis
Correct Answer: B
Rationale: Coagulative necrosis results from ischemia in all solid organs except the brain,
characterized by preserved tissue architecture but loss of nuclei and cytoplasmic details (B).
Cerebral infarction (A) causes liquefactive necrosis. Tuberculosis (C) causes caseous necrosis.
Acute pancreatitis (D) causes fat necrosis.
Q4: A patient with systemic lupus erythematosus has elevated anti-double stranded DNA
antibodies. The mechanism of cellular death primarily responsible for the clearance of these self-
reactive cells during normal immune development is:
A. Necrosis from ATP depletion
B. Apoptosis through caspase activation. [CORRECT]
C. Pyroptosis via inflammasome activation
D. Ferroptosis from iron-dependent lipid peroxidation
Correct Answer: B
Rationale: Apoptosis is programmed cell death essential for immune system development and
removal of self-reactive lymphocytes, mediated by caspase activation and characterized by cell
shrinkage and chromatin condensation without inflammation (B). Necrosis (A) is unprogrammed
cell death with inflammation. Pyroptosis (C) and ferroptosis (D) are specialized cell death
mechanisms not primarily responsible for immune tolerance.
Q5: During the inflammatory response, a patient develops increased vascular permeability and
edema at the site of tissue injury. This is primarily mediated by:
A. Histamine and bradykinin causing endothelial contraction. [CORRECT]
,3
B. Prostaglandins causing vasoconstriction
C. Leukotrienes promoting chemotaxis only
D. Complement C3a stimulating pain fibers
Correct Answer: A
Rationale: Increased vascular permeability in acute inflammation is mediated primarily by
histamine and bradykinin, which cause endothelial cell contraction and gap formation between
cells (A). Prostaglandins (B) mediate pain and vasodilation. Leukotrienes (C) promote
chemotaxis and bronchoconstriction. C3a (D) is an anaphylatoxin causing mast cell
degranulation.
Q6: A 28-year-old male sustains a deep laceration on his thigh. The wound is left open to heal
from the bottom up. This process represents:
A. Primary intention healing with minimal scarring
B. Secondary intention healing with granulation tissue formation. [CORRECT]
C. Tertiary intention with delayed surgical closure
D. Contracture without epithelialization
Correct Answer: B
Rationale: Secondary intention healing occurs when wound edges cannot be approximated,
requiring granulation tissue formation, wound contraction, and epithelialization from the wound
margins (B). Primary intention (A) involves approximated wound edges. Tertiary intention (C) is
delayed primary closure. Contracture (D) is a complication, not a healing mechanism.
Q7: A newborn is diagnosed with cystic fibrosis. The genetic pattern of inheritance and the
underlying cellular defect involve:
A. Autosomal dominant inheritance with chloride channel dysfunction
B. Autosomal recessive inheritance with defective CFTR protein. [CORRECT]
C. X-linked recessive inheritance with lysosomal enzyme deficiency
D. Mitochondrial inheritance with oxidative phosphorylation defect
Correct Answer: B
Rationale: Cystic fibrosis follows autosomal recessive inheritance with mutations in the CFTR
gene on chromosome 7, resulting in defective chloride transport and thick mucus secretions (B).
It is not autosomal dominant (A), X-linked (C), or mitochondrial (D).
, 4
Q8: A 35-year-old woman with a history of breast cancer undergoes genetic testing and is found
to have a BRCA1 mutation. The pathophysiological significance of this mutation involves:
A. Defective DNA repair mechanisms and increased cancer susceptibility. [CORRECT]
B. Overactive proto-oncogenes causing uncontrolled proliferation
C. Defective apoptosis signaling only
D. Enhanced immune surveillance against tumor cells
Correct Answer: A
Rationale: BRCA1 is a tumor suppressor gene involved in DNA repair mechanisms, particularly
double-strand break repair; mutations result in defective DNA repair and increased susceptibility
to breast and ovarian cancer (A). It does not involve proto-oncogene overactivity (B), defective
apoptosis only (C), or immune surveillance (D).
Q9: A patient with chronic hepatitis develops hepatic encephalopathy. The accumulation of
which substance is most responsible for the neurological manifestations?
A. Bilirubin
B. Ammonia. [CORRECT]
C. Lactic acid
D. Ketone bodies
Correct Answer: B
Rationale: Hepatic encephalopathy is primarily caused by elevated blood ammonia levels due to
impaired hepatic detoxification; ammonia crosses the blood-brain barrier causing astrocyte
swelling and neurotransmitter disturbances (B). Bilirubin (A) causes jaundice. Lactic acid (C)
and ketone bodies (D) are not primary mediators of hepatic encephalopathy.
Q10: A 50-year-old male with emphysema has α1-antitrypsin deficiency. This genetic disorder
represents:
A. Autosomal dominant structural protein defect
B. Autosomal recessive enzyme inhibitor deficiency. [CORRECT]
C. X-linked coagulation factor deficiency
D. Mitochondrial metabolic disorder
Correct Answer: B
