NSG530 Exam 1 V1 | NSG 530 Advanced
Pathophysiology | Wilkes University
This exam preparation resource is designed to help students strengthen their understanding of
advanced pathophysiological processes, cellular alterations, and systemic disease
mechanisms. The material emphasizes clinical reasoning, disease progression, and evidence-
based interpretation of pathophysiological concepts commonly encountered in advanced nursing
practice.
The questions included in this version are structured to closely mirror the actual course exam
format and level of difficulty. Detailed expert explanations are included to improve analytical
reasoning, disease interpretation, and exam readiness.
════════════════════════════════════
The Exam Covers:
• Cellular adaptation and injury
• Inflammation and immune response
• Fluid and electrolyte imbalances
• Acid-base balance disorders
• Genetic and chromosomal disorders
• Pathophysiology of stress response
• Infection and systemic response
• Principles of disease mechanisms
════════════════════════════════════
1. A 65-year-old patient who has been bedridden for several weeks due to a hip fracture
experiences a decrease in the size of their leg muscles. This cellular adaptation is best
described as:
A. Hypertrophy
B. Metaplasia
C. Atrophy
D. Dysplasia
,Correct Answer: C
Expert Explanation: Atrophy is a decrease in cellular size caused by aging, disuse, or
reduced blood supply. In this scenario, the lack of mechanical loading on the muscles leads
to a reduction in protein synthesis and an increase in protein degradation. This adaptation
allows the cell to survive under conditions of decreased functional demand.
2. Which cellular adaptation occurs when the columnar epithelium of the bronchial tree is
replaced by stratified squamous epithelium in a chronic smoker?
A. Hyperplasia
B. Neoplasia
C. Dysplasia
D. Metaplasia
Correct Answer: D
Expert Explanation: Metaplasia is the reversible replacement of one mature cell type by
another mature cell type. In chronic smokers, the fragile ciliated columnar epithelium is
replaced by tougher squamous cells to withstand irritation. While this provides protection,
the loss of cilia impairs the clearance of mucus and debris from the lungs.
3. A patient’s biopsy results show ‘abnormal changes in the size, shape, and organization of
mature cells’ in the uterine cervix. This is known as:
A. Hypertrophy
B. Metaplasia
, C. Dysplasia
D. Atrophy
Correct Answer: C
Expert Explanation: Dysplasia refers to abnormal changes in the size, shape, and
organization of mature cells and is often termed ‘atypical hyperplasia.’ While it is not a true
adaptive process, it is frequently associated with neoplastic growth and is often found
adjacent to cancer cells. Monitoring is essential because dysplasia can sometimes regress
or progress to malignancy.
4. What is the most common cause of cellular injury in clinical practice?
A. Chemical injury
B. Hypoxia
C. Free radical formation
D. Genetic defects
Correct Answer: B
Expert Explanation: Hypoxia, or a lack of sufficient oxygen, is the single most common
cause of cellular injury. It typically results from ischemia, which is a reduced blood supply
to the tissues. Without oxygen, the cell cannot produce ATP through aerobic respiration,
leading to cellular swelling and dysfunction.
Pathophysiology | Wilkes University
This exam preparation resource is designed to help students strengthen their understanding of
advanced pathophysiological processes, cellular alterations, and systemic disease
mechanisms. The material emphasizes clinical reasoning, disease progression, and evidence-
based interpretation of pathophysiological concepts commonly encountered in advanced nursing
practice.
The questions included in this version are structured to closely mirror the actual course exam
format and level of difficulty. Detailed expert explanations are included to improve analytical
reasoning, disease interpretation, and exam readiness.
════════════════════════════════════
The Exam Covers:
• Cellular adaptation and injury
• Inflammation and immune response
• Fluid and electrolyte imbalances
• Acid-base balance disorders
• Genetic and chromosomal disorders
• Pathophysiology of stress response
• Infection and systemic response
• Principles of disease mechanisms
════════════════════════════════════
1. A 65-year-old patient who has been bedridden for several weeks due to a hip fracture
experiences a decrease in the size of their leg muscles. This cellular adaptation is best
described as:
A. Hypertrophy
B. Metaplasia
C. Atrophy
D. Dysplasia
,Correct Answer: C
Expert Explanation: Atrophy is a decrease in cellular size caused by aging, disuse, or
reduced blood supply. In this scenario, the lack of mechanical loading on the muscles leads
to a reduction in protein synthesis and an increase in protein degradation. This adaptation
allows the cell to survive under conditions of decreased functional demand.
2. Which cellular adaptation occurs when the columnar epithelium of the bronchial tree is
replaced by stratified squamous epithelium in a chronic smoker?
A. Hyperplasia
B. Neoplasia
C. Dysplasia
D. Metaplasia
Correct Answer: D
Expert Explanation: Metaplasia is the reversible replacement of one mature cell type by
another mature cell type. In chronic smokers, the fragile ciliated columnar epithelium is
replaced by tougher squamous cells to withstand irritation. While this provides protection,
the loss of cilia impairs the clearance of mucus and debris from the lungs.
3. A patient’s biopsy results show ‘abnormal changes in the size, shape, and organization of
mature cells’ in the uterine cervix. This is known as:
A. Hypertrophy
B. Metaplasia
, C. Dysplasia
D. Atrophy
Correct Answer: C
Expert Explanation: Dysplasia refers to abnormal changes in the size, shape, and
organization of mature cells and is often termed ‘atypical hyperplasia.’ While it is not a true
adaptive process, it is frequently associated with neoplastic growth and is often found
adjacent to cancer cells. Monitoring is essential because dysplasia can sometimes regress
or progress to malignancy.
4. What is the most common cause of cellular injury in clinical practice?
A. Chemical injury
B. Hypoxia
C. Free radical formation
D. Genetic defects
Correct Answer: B
Expert Explanation: Hypoxia, or a lack of sufficient oxygen, is the single most common
cause of cellular injury. It typically results from ischemia, which is a reduced blood supply
to the tissues. Without oxygen, the cell cannot produce ATP through aerobic respiration,
leading to cellular swelling and dysfunction.
