NURS 6501 ADVANCED PATHOPHYSIOLOGY FINAL EXAM
WEEK 11 2026/2027 | Scored 100% | Verified Q&A | Walden
University | Pass Guaranteed - A+ Graded
SECTION 1: FOUNDATIONS OF PATHOPHYSIOLOGY
(10 Questions – Cellular adaptation, injury, inflammation, genetics, immunity basics)
Q1: A 58-year-old patient with chronic hypertension presents with left ventricular
hypertrophy. The nurse understands this cellular adaptation is best described as:
A. Atrophy due to decreased workload on the heart
B. Hyperplasia resulting from increased cell division
C. Hypertrophy from increased cell size in response to chronic pressure overload
[CORRECT]
D. Metaplasia caused by replacement of cardiac muscle with connective tissue
Correct Answer: C
Rationale: The best answer is C. Hypertrophy is the increase in cell size, not number,
and the left ventricle grows larger to pump against the elevated afterload of chronic
hypertension. This matches the principle that cardiac muscle cells respond to sustained
pressure overload by enlarging rather than dividing.
,Q2: During ischemia, the shift from aerobic to anaerobic metabolism in a myocardial
cell leads to which of the following consequences?
A. Increased ATP production and improved contractility
B. Accumulation of lactic acid, cellular pH decline, and impaired contractile function
[CORRECT]
C. Enhanced glycogen synthesis and cellular swelling
D. Rapid restoration of ion gradients across the cell membrane
Correct Answer: B
Rationale: The best answer is B. When oxygen is scarce, cells switch to anaerobic
glycolysis, which yields far less ATP and produces lactic acid as a byproduct. The
resulting acidosis interferes with calcium binding to troponin and disrupts normal
contractile mechanics, which is why ischemic myocardium quickly loses pumping
effectiveness.
Q3: A patient with a genetic mutation in the BRCA1 gene is at increased lifetime risk for
breast and ovarian cancer. This type of genetic alteration is best classified as:
A. A germline mutation inherited in an autosomal recessive pattern
B. A somatic mutation acquired during adulthood
C. An inherited germline mutation with autosomal dominant transmission [CORRECT]
D. A chromosomal translocation affecting tumor suppressor function
Correct Answer: C
,Rationale: The best answer is C. BRCA1 mutations are passed through generations in a
dominant pattern, meaning one altered allele is sufficient to increase cancer
susceptibility. This aligns with the principle that inherited germline mutations in tumor
suppressor genes confer predisposition rather than certainty of malignancy.
Q4: Which statement best describes the role of tumor suppressor genes in normal
cellular regulation?
A. They promote cell cycle progression and inhibit apoptosis
B. They encode proteins that halt the cell cycle and facilitate DNA repair or apoptosis
when damage is detected [CORRECT]
C. They stimulate angiogenesis and metastasis in response to hypoxia
D. They function exclusively during embryonic development
Correct Answer: B
Rationale: The best answer is B. Tumor suppressor genes like p53 and Rb act as the
cell's quality control system, pausing division to fix DNA errors or triggering
programmed cell death when repair isn't possible. This matches the principle that loss
of both alleles is typically required before uncontrolled proliferation occurs.
Q5: During the inflammatory response, which vascular change occurs first after tissue
injury?
A. Increased vascular permeability leading to plasma protein leakage
B. Vasodilation of arterioles and increased blood flow to the injured area [CORRECT]
C. Neutrophil margination and diapedesis into interstitial tissue
, D. Fibrin deposition and clot formation at the site of injury
Correct Answer: B
Rationale: The best answer is B. The very first vascular event is arteriolar dilation
mediated by histamine and other mediators, which produces the classic rubor and calor
of acute inflammation. This aligns with the principle that increased blood flow must
precede the leakage and cellular events that follow.
Q6: A patient with a severe bacterial infection develops a fever. The nurse recognizes
that endogenous pyrogens such as interleukin-1 and tumor necrosis factor act primarily
by:
A. Directly killing bacteria through phagocytosis
B. Stimulating the hypothalamus to raise the thermoregulatory set point [CORRECT]
C. Increasing peripheral vasodilation to promote heat loss
D. Inhibiting prostaglandin synthesis in the liver
Correct Answer: B
Rationale: The best answer is B. IL-1 and TNF travel to the hypothalamic
thermoregulatory center and trigger prostaglandin E2 production, which resets the
body's temperature set point upward. This matches the principle that fever is a centrally
mediated defense mechanism, not just a passive consequence of infection.
Q7: A 4-year-old child has recurrent severe bacterial infections. Laboratory studies
reveal extremely low levels of all immunoglobulin classes. This child most likely has:
A. DiGeorge syndrome with thymic hypoplasia
WEEK 11 2026/2027 | Scored 100% | Verified Q&A | Walden
University | Pass Guaranteed - A+ Graded
SECTION 1: FOUNDATIONS OF PATHOPHYSIOLOGY
(10 Questions – Cellular adaptation, injury, inflammation, genetics, immunity basics)
Q1: A 58-year-old patient with chronic hypertension presents with left ventricular
hypertrophy. The nurse understands this cellular adaptation is best described as:
A. Atrophy due to decreased workload on the heart
B. Hyperplasia resulting from increased cell division
C. Hypertrophy from increased cell size in response to chronic pressure overload
[CORRECT]
D. Metaplasia caused by replacement of cardiac muscle with connective tissue
Correct Answer: C
Rationale: The best answer is C. Hypertrophy is the increase in cell size, not number,
and the left ventricle grows larger to pump against the elevated afterload of chronic
hypertension. This matches the principle that cardiac muscle cells respond to sustained
pressure overload by enlarging rather than dividing.
,Q2: During ischemia, the shift from aerobic to anaerobic metabolism in a myocardial
cell leads to which of the following consequences?
A. Increased ATP production and improved contractility
B. Accumulation of lactic acid, cellular pH decline, and impaired contractile function
[CORRECT]
C. Enhanced glycogen synthesis and cellular swelling
D. Rapid restoration of ion gradients across the cell membrane
Correct Answer: B
Rationale: The best answer is B. When oxygen is scarce, cells switch to anaerobic
glycolysis, which yields far less ATP and produces lactic acid as a byproduct. The
resulting acidosis interferes with calcium binding to troponin and disrupts normal
contractile mechanics, which is why ischemic myocardium quickly loses pumping
effectiveness.
Q3: A patient with a genetic mutation in the BRCA1 gene is at increased lifetime risk for
breast and ovarian cancer. This type of genetic alteration is best classified as:
A. A germline mutation inherited in an autosomal recessive pattern
B. A somatic mutation acquired during adulthood
C. An inherited germline mutation with autosomal dominant transmission [CORRECT]
D. A chromosomal translocation affecting tumor suppressor function
Correct Answer: C
,Rationale: The best answer is C. BRCA1 mutations are passed through generations in a
dominant pattern, meaning one altered allele is sufficient to increase cancer
susceptibility. This aligns with the principle that inherited germline mutations in tumor
suppressor genes confer predisposition rather than certainty of malignancy.
Q4: Which statement best describes the role of tumor suppressor genes in normal
cellular regulation?
A. They promote cell cycle progression and inhibit apoptosis
B. They encode proteins that halt the cell cycle and facilitate DNA repair or apoptosis
when damage is detected [CORRECT]
C. They stimulate angiogenesis and metastasis in response to hypoxia
D. They function exclusively during embryonic development
Correct Answer: B
Rationale: The best answer is B. Tumor suppressor genes like p53 and Rb act as the
cell's quality control system, pausing division to fix DNA errors or triggering
programmed cell death when repair isn't possible. This matches the principle that loss
of both alleles is typically required before uncontrolled proliferation occurs.
Q5: During the inflammatory response, which vascular change occurs first after tissue
injury?
A. Increased vascular permeability leading to plasma protein leakage
B. Vasodilation of arterioles and increased blood flow to the injured area [CORRECT]
C. Neutrophil margination and diapedesis into interstitial tissue
, D. Fibrin deposition and clot formation at the site of injury
Correct Answer: B
Rationale: The best answer is B. The very first vascular event is arteriolar dilation
mediated by histamine and other mediators, which produces the classic rubor and calor
of acute inflammation. This aligns with the principle that increased blood flow must
precede the leakage and cellular events that follow.
Q6: A patient with a severe bacterial infection develops a fever. The nurse recognizes
that endogenous pyrogens such as interleukin-1 and tumor necrosis factor act primarily
by:
A. Directly killing bacteria through phagocytosis
B. Stimulating the hypothalamus to raise the thermoregulatory set point [CORRECT]
C. Increasing peripheral vasodilation to promote heat loss
D. Inhibiting prostaglandin synthesis in the liver
Correct Answer: B
Rationale: The best answer is B. IL-1 and TNF travel to the hypothalamic
thermoregulatory center and trigger prostaglandin E2 production, which resets the
body's temperature set point upward. This matches the principle that fever is a centrally
mediated defense mechanism, not just a passive consequence of infection.
Q7: A 4-year-old child has recurrent severe bacterial infections. Laboratory studies
reveal extremely low levels of all immunoglobulin classes. This child most likely has:
A. DiGeorge syndrome with thymic hypoplasia
