MIDTERM EXAM: NURS 6501 (LATEST ) ADVANCED PATHOPHYSIOLOGY |
WALDEN. QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES
2026 Q&A |STUDY GUIDE| INSTANT DOWNLOAD PDF
Core Domains
- Cellular Biology and Membrane Function
- Genetics and Chromosomal Disorders
- Immune System and Inflammation
- Infectious Disease Pathogenesis
- Cancer Biology and Neoplasia
- Fluid, Electrolyte, and Acid-Base Balance
- Endocrine Pathophysiology
- Cardiovascular System Disorders
Introduction
This exam assesses advanced pathophysiological knowledge essential for advanced practice nursing. The
purpose is to evaluate understanding of bio-physiological processes, deviations from normal function, and
scientific concepts related to disease biology across the lifespan. The multiple-choice and scenario-based
structure tests both foundational theory and applied professional knowledge, emphasizing real-world clinical
application and critical decision-making. Candidates will demonstrate competency in regulatory compliance,
ethics, professional standards, and critical thinking required for advanced practice nursing roles.
Section One: Questions 1–100
,Question 1
A runner has depleted all the oxygen available for muscle energy. Which of the following will facilitate his
continued muscle performance?
A. Aerobic respiration
B. Creatine phosphate accumulation
C. Anaerobic glycolysis
D. Beta-oxidation
🟢 Correct answer: C
🔴 RATIONALE: Anaerobic glycolysis allows muscle cells to produce ATP without oxygen by breaking down
glucose into lactate, enabling continued muscle performance when oxygen is depleted.
Question 2
What causes the rapid change in the resting membrane potential that initiates an action potential?
A. Potassium gates open and potassium rushes out
B. Sodium gates open, and sodium rushes into the cell
C. Chloride channels open and chloride enters the cell
D. Calcium gates close and calcium is trapped outside
🟢 Correct answer: B
,🔴 RATIONALE: Sodium gates opening allows sodium to rush into the cell, changing the membrane potential
from negative to positive, which initiates the action potential.
Question 3
A 12-year-old male is diagnosed with Klinefelter syndrome. His karyotype would reveal which of the following?
A. XY
B. XXX
C. XXY
D. X0
🟢 Correct answer: C
🔴 RATIONALE: Klinefelter syndrome is characterized by an XXY karyotype in males, affecting physical and
cognitive development.
Question 4
A nurse is reviewing a pedigree chart. An aide asks why people who have neurofibromatosis will show varying
degrees of the disease. Which response is correct?
, A. Penetrance
B. Expressivity
C. Dominance
D. Recessiveness
🟢 Correct answer: B
🔴 RATIONALE: Expressivity refers to the varying degree or severity of disease expression in individuals with
the same genetic mutation, explaining why neurofibromatosis shows different manifestations.
Question 5
In teaching a patient with cirrhosis, which information should the nurse include regarding cholesterol?
A. Cholesterol increases membrane fluidity of erythrocytes
B. Cholesterol decreases the membrane fluidity of the erythrocyte, reducing oxygen-carrying ability
C. Cholesterol has no effect on erythrocyte membrane
D. Cholesterol increases oxygen binding capacity
🟢 Correct answer: B
🔴 RATIONALE: Cholesterol decreases erythrocyte membrane fluidity, which reduces the cell's ability to carry
oxygen effectively.
WALDEN. QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES
2026 Q&A |STUDY GUIDE| INSTANT DOWNLOAD PDF
Core Domains
- Cellular Biology and Membrane Function
- Genetics and Chromosomal Disorders
- Immune System and Inflammation
- Infectious Disease Pathogenesis
- Cancer Biology and Neoplasia
- Fluid, Electrolyte, and Acid-Base Balance
- Endocrine Pathophysiology
- Cardiovascular System Disorders
Introduction
This exam assesses advanced pathophysiological knowledge essential for advanced practice nursing. The
purpose is to evaluate understanding of bio-physiological processes, deviations from normal function, and
scientific concepts related to disease biology across the lifespan. The multiple-choice and scenario-based
structure tests both foundational theory and applied professional knowledge, emphasizing real-world clinical
application and critical decision-making. Candidates will demonstrate competency in regulatory compliance,
ethics, professional standards, and critical thinking required for advanced practice nursing roles.
Section One: Questions 1–100
,Question 1
A runner has depleted all the oxygen available for muscle energy. Which of the following will facilitate his
continued muscle performance?
A. Aerobic respiration
B. Creatine phosphate accumulation
C. Anaerobic glycolysis
D. Beta-oxidation
🟢 Correct answer: C
🔴 RATIONALE: Anaerobic glycolysis allows muscle cells to produce ATP without oxygen by breaking down
glucose into lactate, enabling continued muscle performance when oxygen is depleted.
Question 2
What causes the rapid change in the resting membrane potential that initiates an action potential?
A. Potassium gates open and potassium rushes out
B. Sodium gates open, and sodium rushes into the cell
C. Chloride channels open and chloride enters the cell
D. Calcium gates close and calcium is trapped outside
🟢 Correct answer: B
,🔴 RATIONALE: Sodium gates opening allows sodium to rush into the cell, changing the membrane potential
from negative to positive, which initiates the action potential.
Question 3
A 12-year-old male is diagnosed with Klinefelter syndrome. His karyotype would reveal which of the following?
A. XY
B. XXX
C. XXY
D. X0
🟢 Correct answer: C
🔴 RATIONALE: Klinefelter syndrome is characterized by an XXY karyotype in males, affecting physical and
cognitive development.
Question 4
A nurse is reviewing a pedigree chart. An aide asks why people who have neurofibromatosis will show varying
degrees of the disease. Which response is correct?
, A. Penetrance
B. Expressivity
C. Dominance
D. Recessiveness
🟢 Correct answer: B
🔴 RATIONALE: Expressivity refers to the varying degree or severity of disease expression in individuals with
the same genetic mutation, explaining why neurofibromatosis shows different manifestations.
Question 5
In teaching a patient with cirrhosis, which information should the nurse include regarding cholesterol?
A. Cholesterol increases membrane fluidity of erythrocytes
B. Cholesterol decreases the membrane fluidity of the erythrocyte, reducing oxygen-carrying ability
C. Cholesterol has no effect on erythrocyte membrane
D. Cholesterol increases oxygen binding capacity
🟢 Correct answer: B
🔴 RATIONALE: Cholesterol decreases erythrocyte membrane fluidity, which reduces the cell's ability to carry
oxygen effectively.
