NR 283 PATHOPHYSIOLOGY FINAL EXAM 300
ACTUAL QUESTIONS AND CORRECT ANSWERS
WITH RATIONALE LATEST UPDATE ALREADY
GRADED A+ ASSURED PASS
This comprehensive 300-question study guide is designed to prepare you for the
NR 283 Pathophysiology final exam by covering all major body systems and
disease processes. Organized into ten sections, it addresses cellular adaptation,
fluid and electrolyte imbalances, endocrine disorders, cardiovascular and
respiratory pathology, renal and gastrointestinal diseases, and neurologic
conditions. Each multiple-choice question is paired with a correct answer and a
detailed rationale to reinforce your understanding of the underlying mechanisms of
disease. Use this guide to test your knowledge of etiology, pathogenesis, and
clinical manifestations. For best results, combine this review with your course
materials and focus on understanding the "why" behind each disease process.
Section 1: Cellular Biology, Adaptation, Injury, and Genetics (Questions 1-50)
1. A patient with chronic hypertension develops left ventricular hypertrophy.
Which cellular adaptation explains this change?
A) Hyperplasia
B) Atrophy
C) Hypertrophy
D) Metaplasia
Answer: C
Rationale: Hypertrophy is an increase in cell size, which occurs in cardiac muscle
cells as an adaptive response to increased workload, such as chronic hypertension .
2. Which of the following is the most common cause of cellular injury?
A) Chemical injury from drugs
B) Free radical-induced injury
C) Hypoxia
D) Chemical injury from pollutants
,Answer: C
Rationale: Hypoxia, or oxygen deficiency, is the most frequent cause of cellular
injury, often resulting from ischemia, which impairs aerobic metabolism and ATP
production .
3. Which type of necrosis results from hypoxia, typically from ischemia, and is
characterized by the breakdown of cellular proteins and enzymatic digestion?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Answer: A
Rationale: Coagulative necrosis is the most common type, often caused by
hypoxia/ischemia. It preserves tissue architecture for several days due to
denaturation of structural proteins .
4. A patient with COPD develops polycythemia. What is the underlying cause?
A) Iron deficiency
B) Increased plasma volume
C) Chronic hypoxemia stimulating erythropoietin
D) Bone marrow suppression
Answer: C
Rationale: Chronic hypoxemia stimulates the kidneys to release erythropoietin,
which increases red blood cell production (polycythemia) to enhance oxygen-
carrying capacity .
5. What is the primary function of the mitochondria?
A) Protein synthesis
B) Cellular communication
C) Producing most of the cell's ATP
D) Waste excretion
Answer: C
Rationale: The mitochondria are known as the powerhouse of the cell because their
main job is to produce most of the cell's adenosine triphosphate (ATP) through
oxidative phosphorylation .
6. The study of how disease processes affect the function of the body is known as:
A) Etiology
B) Pathogenesis
C) Pathophysiology
,D) Morphology
Answer: C
Rationale: Pathophysiology is the discipline that explores the functional changes in
the body resulting from disease, explaining the mechanisms of disease processes .
7. Which of the following is NOT one of the eight listed functions of cells?
A) Movement
B) Conductivity
C) Reproduction
D) Metabolism
Answer: D
Rationale: The eight listed functions of cells are movement, conductivity,
metabolic absorption, secretion, excretion, respiration, reproduction, and
communication. Metabolism is a broad term for chemical processes, not a specific
cellular function in this context .
8. During DNA replication, which base pairs are considered complementary?
A) Adenine to Guanine
B) Thymine to Cytosine
C) Adenine to Thymine and Cytosine to Guanine
D) Guanine to Thymine
Answer: C
Rationale: Complementary base pairing is the principle where adenine (A) always
pairs with thymine (T), and cytosine (C) always pairs with guanine (G), ensuring
accurate DNA replication .
9. Meiosis is the process of forming:
A) Somatic cells
B) Gamete cells
C) Muscle cells
D) Nerve cells
Answer: B
Rationale: Meiosis is a type of cell division that produces gametes (sperm and egg
cells), which are haploid cells essential for sexual reproduction .
10. What is the chromosomal condition characterized by three copies of a specific
chromosome?
A) Monosomy
B) Trisomy
C) Tetraploidy
, D) Triploidy
Answer: B
Rationale: Trisomy is an aneuploid condition where a cell contains three copies of
one particular chromosome instead of the normal two, such as in Down syndrome
(trisomy 21) .
11. Marfan syndrome is an example of which inheritance pattern?
A) Autosomal recessive
B) X-linked recessive
C) Autosomal dominant
D) Multifactorial
Answer: C
Rationale: Marfan syndrome is an autosomal dominant disorder, meaning a person
only needs to inherit one mutated gene from an affected parent to develop the
condition .
12. Which of the following is an autosomal recessive disorder?
A) Huntington's disease
B) Cystic fibrosis
C) Marfan syndrome
D) Duchenne's muscular dystrophy
Answer: B
Rationale: Cystic fibrosis is a classic example of an autosomal recessive disorder,
requiring two copies of the mutated gene (one from each parent) for the disease to
manifest .
13. What is the chromosomal abnormality in Turner syndrome?
A) Trisomy 21
B) 45 chromosomes with a single X chromosome (XO)
C) 47 chromosomes with XXY
D) Deletion of the short arm of chromosome 5
Answer: B
Rationale: Turner syndrome is a sex chromosome aneuploidy where a female has
only one X chromosome instead of two, resulting in a total of 45 chromosomes .
14. A male with Klinefelter syndrome has which chromosomal pattern?
A) XO
B) XXY
C) XYY
D) Trisomy 21
ACTUAL QUESTIONS AND CORRECT ANSWERS
WITH RATIONALE LATEST UPDATE ALREADY
GRADED A+ ASSURED PASS
This comprehensive 300-question study guide is designed to prepare you for the
NR 283 Pathophysiology final exam by covering all major body systems and
disease processes. Organized into ten sections, it addresses cellular adaptation,
fluid and electrolyte imbalances, endocrine disorders, cardiovascular and
respiratory pathology, renal and gastrointestinal diseases, and neurologic
conditions. Each multiple-choice question is paired with a correct answer and a
detailed rationale to reinforce your understanding of the underlying mechanisms of
disease. Use this guide to test your knowledge of etiology, pathogenesis, and
clinical manifestations. For best results, combine this review with your course
materials and focus on understanding the "why" behind each disease process.
Section 1: Cellular Biology, Adaptation, Injury, and Genetics (Questions 1-50)
1. A patient with chronic hypertension develops left ventricular hypertrophy.
Which cellular adaptation explains this change?
A) Hyperplasia
B) Atrophy
C) Hypertrophy
D) Metaplasia
Answer: C
Rationale: Hypertrophy is an increase in cell size, which occurs in cardiac muscle
cells as an adaptive response to increased workload, such as chronic hypertension .
2. Which of the following is the most common cause of cellular injury?
A) Chemical injury from drugs
B) Free radical-induced injury
C) Hypoxia
D) Chemical injury from pollutants
,Answer: C
Rationale: Hypoxia, or oxygen deficiency, is the most frequent cause of cellular
injury, often resulting from ischemia, which impairs aerobic metabolism and ATP
production .
3. Which type of necrosis results from hypoxia, typically from ischemia, and is
characterized by the breakdown of cellular proteins and enzymatic digestion?
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Answer: A
Rationale: Coagulative necrosis is the most common type, often caused by
hypoxia/ischemia. It preserves tissue architecture for several days due to
denaturation of structural proteins .
4. A patient with COPD develops polycythemia. What is the underlying cause?
A) Iron deficiency
B) Increased plasma volume
C) Chronic hypoxemia stimulating erythropoietin
D) Bone marrow suppression
Answer: C
Rationale: Chronic hypoxemia stimulates the kidneys to release erythropoietin,
which increases red blood cell production (polycythemia) to enhance oxygen-
carrying capacity .
5. What is the primary function of the mitochondria?
A) Protein synthesis
B) Cellular communication
C) Producing most of the cell's ATP
D) Waste excretion
Answer: C
Rationale: The mitochondria are known as the powerhouse of the cell because their
main job is to produce most of the cell's adenosine triphosphate (ATP) through
oxidative phosphorylation .
6. The study of how disease processes affect the function of the body is known as:
A) Etiology
B) Pathogenesis
C) Pathophysiology
,D) Morphology
Answer: C
Rationale: Pathophysiology is the discipline that explores the functional changes in
the body resulting from disease, explaining the mechanisms of disease processes .
7. Which of the following is NOT one of the eight listed functions of cells?
A) Movement
B) Conductivity
C) Reproduction
D) Metabolism
Answer: D
Rationale: The eight listed functions of cells are movement, conductivity,
metabolic absorption, secretion, excretion, respiration, reproduction, and
communication. Metabolism is a broad term for chemical processes, not a specific
cellular function in this context .
8. During DNA replication, which base pairs are considered complementary?
A) Adenine to Guanine
B) Thymine to Cytosine
C) Adenine to Thymine and Cytosine to Guanine
D) Guanine to Thymine
Answer: C
Rationale: Complementary base pairing is the principle where adenine (A) always
pairs with thymine (T), and cytosine (C) always pairs with guanine (G), ensuring
accurate DNA replication .
9. Meiosis is the process of forming:
A) Somatic cells
B) Gamete cells
C) Muscle cells
D) Nerve cells
Answer: B
Rationale: Meiosis is a type of cell division that produces gametes (sperm and egg
cells), which are haploid cells essential for sexual reproduction .
10. What is the chromosomal condition characterized by three copies of a specific
chromosome?
A) Monosomy
B) Trisomy
C) Tetraploidy
, D) Triploidy
Answer: B
Rationale: Trisomy is an aneuploid condition where a cell contains three copies of
one particular chromosome instead of the normal two, such as in Down syndrome
(trisomy 21) .
11. Marfan syndrome is an example of which inheritance pattern?
A) Autosomal recessive
B) X-linked recessive
C) Autosomal dominant
D) Multifactorial
Answer: C
Rationale: Marfan syndrome is an autosomal dominant disorder, meaning a person
only needs to inherit one mutated gene from an affected parent to develop the
condition .
12. Which of the following is an autosomal recessive disorder?
A) Huntington's disease
B) Cystic fibrosis
C) Marfan syndrome
D) Duchenne's muscular dystrophy
Answer: B
Rationale: Cystic fibrosis is a classic example of an autosomal recessive disorder,
requiring two copies of the mutated gene (one from each parent) for the disease to
manifest .
13. What is the chromosomal abnormality in Turner syndrome?
A) Trisomy 21
B) 45 chromosomes with a single X chromosome (XO)
C) 47 chromosomes with XXY
D) Deletion of the short arm of chromosome 5
Answer: B
Rationale: Turner syndrome is a sex chromosome aneuploidy where a female has
only one X chromosome instead of two, resulting in a total of 45 chromosomes .
14. A male with Klinefelter syndrome has which chromosomal pattern?
A) XO
B) XXY
C) XYY
D) Trisomy 21
