NSG 533 ADVANCED PHARMACOLOGY EXAM
WITH WELL-VERIFIED QUESTIONS AND
ANSWERS|| GUARANTEED PASS|| ALREADY
GRADED A+
NSG 533: 200+ Practice Questions & Answers
Section 1: Foundational Pathophysiology Concepts (Q1–Q25)
Q1. What are the five essential components of pathophysiology?
A: 1) Etiology (causative mechanisms), 2) Epidemiology (risk factors and
distribution in populations), 3) Pathogenesis (disease mechanism), 4) Clinical
manifestations (signs, symptoms, diagnostic criteria), 5) Outcomes (cure,
remission, chronicity, or death).
Q2. What does etiology refer to?
A: The "why" of disease—the causative reason for it. It may be simple or
complex, and can be idiopathic (unknown cause) or iatrogenic (caused by
medical treatment).
Q3. Define epidemiology.
A: The study of patterns of disease among groups or populations, examining
relationships between population characteristics (age, ethnicity, socioeconomic
status, geographic location) and the incidence and prevalence of disease.
Q4. What is pathogenesis?
A: The sequence of events that occurs between the stimulus event(s) and the
manifestations of disease.
Q5. What are clinical manifestations?
A: Signs and symptoms that tell an individual and their healthcare provider that
something is wrong.
Q6. What are the four common mechanisms that characterize all cell
injury and death?
A: 1) ATP depletion (e.g., ischemia, anemia); 2) Oxygen and oxygen-derived
free radicals (e.g., chemical/radiation injury, ischemia-reperfusion injury); 3)
Intracellular calcium and loss of calcium steady state (e.g., ischemia, certain
,chemicals); 4) Defects in membrane permeability (e.g., medications causing
liver or kidney damage).
Q7. What is ATP depletion and why is it significant in cell injury?
A: ATP depletion refers to the inability of the cell to produce adequate energy
to fuel normal activities (cell membrane pumps, protein synthesis). It is the
basis of much disease today, and most cases involve hypoxia.
Q8. Compare glycolysis and oxidative phosphorylation in terms of ATP
yield.
A: Glycolysis yields 2 ATP (inefficient, anaerobic), while oxidative
phosphorylation yields 36 ATP (efficient, aerobic).
Q9. What is the most common method of impairing oxygen and ATP
production?
A: Hypoxia.
Q10. What is ischemia and how does it lead to cell injury?
A: Ischemia is inadequate blood flow. It can lead to irreversible cell injury
directly through impairment of energy production in the cell.
Q11. Describe the cellular events that occur with ischemia-induced hypoxic
injury.
A: 1) ATP production in mitochondria declines; 2) Na-K-ATPase pump fails →
increased Na+, H2O, Ca+ in cell, decreased K+; 3) Cell and organelles swell; 4)
RER swells, ribosomes fall off, protein synthesis stops; 5) Glycolysis increases,
glycogen stores deplete; 6) Lactic acid produced → intracellular pH declines; 7)
Drop in pH causes pyknosis (clumping of nuclear material) → karyorrhexis
(fragmentation) → karyolysis (dissolution of nuclear membrane); 8) Lysosomes
rupture, releasing proteolytic enzymes → autodigestion of cell contents; 9)
Disruption of cell membrane increases Ca+ influx → activates proteases.
Q12. What are free radicals?
A: Unstable compounds with an unpaired electron and high affinity for lipids.
They are a normal byproduct of cellular metabolism.
Q13. What is lipid peroxidation?
A: The binding of free radicals to the phospholipid bilayer membrane around
the cell and its organelles, causing dissolution or a hole.
Q14. What are reactive oxygen species (ROS)?
A: Chemically reactive molecules formed as natural oxidant species in cells
during mitochondrial respiration and energy generation.
, Q15. How does the body handle free radicals and ROS?
A: Antioxidants remove them. Problems occur when free radicals are produced
in amounts that overwhelm antioxidants.
Q16. What is the difference between incidence and prevalence?
A: Incidence refers to new cases, while prevalence refers to all existing cases
(new and old) in a population at a given time.
Q17. What is primary prevention?
A: Preventing the disease before it occurs (e.g., vaccination, health education).
Q18. What is secondary prevention?
A: Early detection and treatment of disease (e.g., screening tests).
Q19. What is tertiary prevention?
A: Treating or reducing relapse, disability, or chronicity after disease has
occurred.
Q20. What are the types of cellular adaptation?
A: Atrophy (decrease in cell size), hypertrophy (increase in cell size),
hyperplasia (increase in cell number), metaplasia (reversible change of one cell
type to another), and dysplasia (disordered growth).
Q21. Define atrophy.
A: A decrease in cell size and metabolic activity in response to decreased
workload or reduced blood supply.
Q22. What is hypertrophy?
A: An increase in cell size in response to increased workload or hormonal
stimulation.
Q23. What is hyperplasia?
A: An increase in the number of cells in a tissue or organ.
Q24. What is metaplasia?
A: A reversible change in which one adult cell type is replaced by another adult
cell type.
Q25. What is dysplasia?
A: Disordered cellular growth, often a precursor to malignancy.
Section 2: Cellular Injury & Death (Q26–Q45)
WITH WELL-VERIFIED QUESTIONS AND
ANSWERS|| GUARANTEED PASS|| ALREADY
GRADED A+
NSG 533: 200+ Practice Questions & Answers
Section 1: Foundational Pathophysiology Concepts (Q1–Q25)
Q1. What are the five essential components of pathophysiology?
A: 1) Etiology (causative mechanisms), 2) Epidemiology (risk factors and
distribution in populations), 3) Pathogenesis (disease mechanism), 4) Clinical
manifestations (signs, symptoms, diagnostic criteria), 5) Outcomes (cure,
remission, chronicity, or death).
Q2. What does etiology refer to?
A: The "why" of disease—the causative reason for it. It may be simple or
complex, and can be idiopathic (unknown cause) or iatrogenic (caused by
medical treatment).
Q3. Define epidemiology.
A: The study of patterns of disease among groups or populations, examining
relationships between population characteristics (age, ethnicity, socioeconomic
status, geographic location) and the incidence and prevalence of disease.
Q4. What is pathogenesis?
A: The sequence of events that occurs between the stimulus event(s) and the
manifestations of disease.
Q5. What are clinical manifestations?
A: Signs and symptoms that tell an individual and their healthcare provider that
something is wrong.
Q6. What are the four common mechanisms that characterize all cell
injury and death?
A: 1) ATP depletion (e.g., ischemia, anemia); 2) Oxygen and oxygen-derived
free radicals (e.g., chemical/radiation injury, ischemia-reperfusion injury); 3)
Intracellular calcium and loss of calcium steady state (e.g., ischemia, certain
,chemicals); 4) Defects in membrane permeability (e.g., medications causing
liver or kidney damage).
Q7. What is ATP depletion and why is it significant in cell injury?
A: ATP depletion refers to the inability of the cell to produce adequate energy
to fuel normal activities (cell membrane pumps, protein synthesis). It is the
basis of much disease today, and most cases involve hypoxia.
Q8. Compare glycolysis and oxidative phosphorylation in terms of ATP
yield.
A: Glycolysis yields 2 ATP (inefficient, anaerobic), while oxidative
phosphorylation yields 36 ATP (efficient, aerobic).
Q9. What is the most common method of impairing oxygen and ATP
production?
A: Hypoxia.
Q10. What is ischemia and how does it lead to cell injury?
A: Ischemia is inadequate blood flow. It can lead to irreversible cell injury
directly through impairment of energy production in the cell.
Q11. Describe the cellular events that occur with ischemia-induced hypoxic
injury.
A: 1) ATP production in mitochondria declines; 2) Na-K-ATPase pump fails →
increased Na+, H2O, Ca+ in cell, decreased K+; 3) Cell and organelles swell; 4)
RER swells, ribosomes fall off, protein synthesis stops; 5) Glycolysis increases,
glycogen stores deplete; 6) Lactic acid produced → intracellular pH declines; 7)
Drop in pH causes pyknosis (clumping of nuclear material) → karyorrhexis
(fragmentation) → karyolysis (dissolution of nuclear membrane); 8) Lysosomes
rupture, releasing proteolytic enzymes → autodigestion of cell contents; 9)
Disruption of cell membrane increases Ca+ influx → activates proteases.
Q12. What are free radicals?
A: Unstable compounds with an unpaired electron and high affinity for lipids.
They are a normal byproduct of cellular metabolism.
Q13. What is lipid peroxidation?
A: The binding of free radicals to the phospholipid bilayer membrane around
the cell and its organelles, causing dissolution or a hole.
Q14. What are reactive oxygen species (ROS)?
A: Chemically reactive molecules formed as natural oxidant species in cells
during mitochondrial respiration and energy generation.
, Q15. How does the body handle free radicals and ROS?
A: Antioxidants remove them. Problems occur when free radicals are produced
in amounts that overwhelm antioxidants.
Q16. What is the difference between incidence and prevalence?
A: Incidence refers to new cases, while prevalence refers to all existing cases
(new and old) in a population at a given time.
Q17. What is primary prevention?
A: Preventing the disease before it occurs (e.g., vaccination, health education).
Q18. What is secondary prevention?
A: Early detection and treatment of disease (e.g., screening tests).
Q19. What is tertiary prevention?
A: Treating or reducing relapse, disability, or chronicity after disease has
occurred.
Q20. What are the types of cellular adaptation?
A: Atrophy (decrease in cell size), hypertrophy (increase in cell size),
hyperplasia (increase in cell number), metaplasia (reversible change of one cell
type to another), and dysplasia (disordered growth).
Q21. Define atrophy.
A: A decrease in cell size and metabolic activity in response to decreased
workload or reduced blood supply.
Q22. What is hypertrophy?
A: An increase in cell size in response to increased workload or hormonal
stimulation.
Q23. What is hyperplasia?
A: An increase in the number of cells in a tissue or organ.
Q24. What is metaplasia?
A: A reversible change in which one adult cell type is replaced by another adult
cell type.
Q25. What is dysplasia?
A: Disordered cellular growth, often a precursor to malignancy.
Section 2: Cellular Injury & Death (Q26–Q45)
