NSG530 ADVANCED
PATHOPHYSIOLOGY FINAL EXAM
STUDY GUIDE QUESTIONS AND
VERIFIED ANSWERS | 100% CORRECT |
GRADE A+ - WILKES
1. A patient with chronic gastroesophageal reflux disease (GERD) shows a transformation of
esophageal stratified squamous epithelium into columnar epithelium. This cellular adaptation
is known as:
A. Metaplasia
B. Dysplasia
C. Hyperplasia
D. Atrophy
Answer: A
Conceptual Explanation: Metaplasia is the reversible replacement of one mature cell type
by another mature cell type, often as a response to chronic irritation like gastric acid.
2. Which of the following describes the mechanism of cell death characterized by cellular
swelling, membrane rupture, and an inflammatory response?
A. Apoptosis
,B. Necrosis
C. Autophagy
D. Pyoptosis
Answer: B
Conceptual Explanation: Necrosis involves the loss of membrane integrity and leakage of
cellular contents, leading to inflammation, unlike apoptosis which is programmed and neat.
3. In the context of genetics, what is the defining characteristic of an autosomal dominant
inheritance pattern?
A. The trait only appears in males.
B. It skips generations through asymptomatic carriers.
C. Affected individuals must be homozygous for the mutation.
D. Only one copy of the mutated gene is required for the disease to manifest.
Answer: D
Conceptual Explanation: Autosomal dominant disorders occur when only one allele of a
gene pair carries a mutation, meaning a single copy is sufficient to express the phenotype.
4. Which mediator released by mast cells is primarily responsible for the immediate
vasodilation and increased vascular permeability seen in Type I hypersensitivity?
A. Bradykinin
B. Leukotrienes
, C. Interleukin-10
D. Histamine
Answer: D
Conceptual Explanation: Histamine is a potent vasoactive amine released during mast cell
degranulation that triggers immediate allergic responses.
5. A 65-year-old male presents with symptoms of Parkinson’s disease. The pathophysiology
involves the depletion of dopamine in which brain region?
A. Cerebral cortex
B. Amygdala
C. Hippocampus
D. Substantia nigra
Answer: D
Conceptual Explanation: Parkinson’s disease is characterized by the progressive loss of
dopaminergic neurons in the substantia nigra pars compacta of the basal ganglia.
6. What is the primary pathophysiological driver of Type 1 Diabetes Mellitus?
A. Insulin resistance in peripheral tissues
B. Excessive glucagon secretion by alpha cells
C. Autoimmune destruction of pancreatic beta cells
PATHOPHYSIOLOGY FINAL EXAM
STUDY GUIDE QUESTIONS AND
VERIFIED ANSWERS | 100% CORRECT |
GRADE A+ - WILKES
1. A patient with chronic gastroesophageal reflux disease (GERD) shows a transformation of
esophageal stratified squamous epithelium into columnar epithelium. This cellular adaptation
is known as:
A. Metaplasia
B. Dysplasia
C. Hyperplasia
D. Atrophy
Answer: A
Conceptual Explanation: Metaplasia is the reversible replacement of one mature cell type
by another mature cell type, often as a response to chronic irritation like gastric acid.
2. Which of the following describes the mechanism of cell death characterized by cellular
swelling, membrane rupture, and an inflammatory response?
A. Apoptosis
,B. Necrosis
C. Autophagy
D. Pyoptosis
Answer: B
Conceptual Explanation: Necrosis involves the loss of membrane integrity and leakage of
cellular contents, leading to inflammation, unlike apoptosis which is programmed and neat.
3. In the context of genetics, what is the defining characteristic of an autosomal dominant
inheritance pattern?
A. The trait only appears in males.
B. It skips generations through asymptomatic carriers.
C. Affected individuals must be homozygous for the mutation.
D. Only one copy of the mutated gene is required for the disease to manifest.
Answer: D
Conceptual Explanation: Autosomal dominant disorders occur when only one allele of a
gene pair carries a mutation, meaning a single copy is sufficient to express the phenotype.
4. Which mediator released by mast cells is primarily responsible for the immediate
vasodilation and increased vascular permeability seen in Type I hypersensitivity?
A. Bradykinin
B. Leukotrienes
, C. Interleukin-10
D. Histamine
Answer: D
Conceptual Explanation: Histamine is a potent vasoactive amine released during mast cell
degranulation that triggers immediate allergic responses.
5. A 65-year-old male presents with symptoms of Parkinson’s disease. The pathophysiology
involves the depletion of dopamine in which brain region?
A. Cerebral cortex
B. Amygdala
C. Hippocampus
D. Substantia nigra
Answer: D
Conceptual Explanation: Parkinson’s disease is characterized by the progressive loss of
dopaminergic neurons in the substantia nigra pars compacta of the basal ganglia.
6. What is the primary pathophysiological driver of Type 1 Diabetes Mellitus?
A. Insulin resistance in peripheral tissues
B. Excessive glucagon secretion by alpha cells
C. Autoimmune destruction of pancreatic beta cells
