WGU D027 Exam and Study Guide Latest 2026/2027
Test Bank| D027 Advanced PathoPharmacology Exam
Prep with Complete Real Exam Questions and Correct
Detailed Answers (Verified Answers) Graded A+
1. A 65-year-old patient with chronic gastroesophageal reflux
disease (GERD) presents for follow-up. The esophageal biopsy
reveals replacement of normal squamous epithelium with
columnar epithelium containing goblet cells. This cellular
adaptation is best described as:
• A. Metaplasia
• B. Hyperplasia
• C. Dysplasia
• D. Atrophy
Correct Answer: A
Rationale: Metaplasia is the reversible replacement of one
differentiated cell type with another. In Barrett's esophagus, the
1
,normal squamous epithelium of the esophagus is replaced by
columnar epithelium with goblet cells (intestinal metaplasia) due to
chronic acid exposure .
2. Which cellular adaptation is characterized by a decrease in
cell size and function resulting from reduced workload or nutrient
supply?
• A. Hypertrophy
• B. Hyperplasia
• C. Atrophy
• D. Dysplasia
Correct Answer: C
Rationale: Atrophy is a decrease in cell size and function due to
reduced workload, loss of innervation, diminished blood supply,
inadequate nutrition, or aging. Common examples include disuse
atrophy of muscles and atrophy of endocrine organs with aging .
2
,3. A 55-year-old female with long-standing hypertension has
developed thickening of the left ventricular wall without an
increase in the number of cells. This represents:
• A. Physiologic hypertrophy
• B. Pathologic hypertrophy
• C. Hyperplasia
• D. Dysplasia
Correct Answer: B
Rationale: Pathologic hypertrophy results from increased workload
in disease states. In hypertension, the left ventricle undergoes
hypertrophy (increased cell size) to compensate for increased
afterload. Unlike physiologic hypertrophy, this adaptation is
maladaptive and can lead to heart failure .
4. A 30-year-old woman with a family history of breast cancer
undergoes genetic testing and is found to have a BRCA1
3
, mutation. The presence of this gene mutation increases her risk of
developing cancer due to impaired:
• A. Cell cycle regulation
• B. DNA repair
• C. Apoptosis
• D. Angiogenesis
Correct Answer: B
Rationale: BRCA1 and BRCA2 are tumor suppressor genes involved
in DNA repair. Mutations impair the cell's ability to repair double-
strand DNA breaks, leading to genomic instability and increased
cancer risk, particularly for breast and ovarian cancers .
5. A patient with chronic alcohol use disorder presents with
jaundice and elevated liver enzymes. Liver biopsy shows fatty
infiltration (steatosis) of hepatocytes. This cellular change is best
described as:
• A. Hydropic swelling
4
Test Bank| D027 Advanced PathoPharmacology Exam
Prep with Complete Real Exam Questions and Correct
Detailed Answers (Verified Answers) Graded A+
1. A 65-year-old patient with chronic gastroesophageal reflux
disease (GERD) presents for follow-up. The esophageal biopsy
reveals replacement of normal squamous epithelium with
columnar epithelium containing goblet cells. This cellular
adaptation is best described as:
• A. Metaplasia
• B. Hyperplasia
• C. Dysplasia
• D. Atrophy
Correct Answer: A
Rationale: Metaplasia is the reversible replacement of one
differentiated cell type with another. In Barrett's esophagus, the
1
,normal squamous epithelium of the esophagus is replaced by
columnar epithelium with goblet cells (intestinal metaplasia) due to
chronic acid exposure .
2. Which cellular adaptation is characterized by a decrease in
cell size and function resulting from reduced workload or nutrient
supply?
• A. Hypertrophy
• B. Hyperplasia
• C. Atrophy
• D. Dysplasia
Correct Answer: C
Rationale: Atrophy is a decrease in cell size and function due to
reduced workload, loss of innervation, diminished blood supply,
inadequate nutrition, or aging. Common examples include disuse
atrophy of muscles and atrophy of endocrine organs with aging .
2
,3. A 55-year-old female with long-standing hypertension has
developed thickening of the left ventricular wall without an
increase in the number of cells. This represents:
• A. Physiologic hypertrophy
• B. Pathologic hypertrophy
• C. Hyperplasia
• D. Dysplasia
Correct Answer: B
Rationale: Pathologic hypertrophy results from increased workload
in disease states. In hypertension, the left ventricle undergoes
hypertrophy (increased cell size) to compensate for increased
afterload. Unlike physiologic hypertrophy, this adaptation is
maladaptive and can lead to heart failure .
4. A 30-year-old woman with a family history of breast cancer
undergoes genetic testing and is found to have a BRCA1
3
, mutation. The presence of this gene mutation increases her risk of
developing cancer due to impaired:
• A. Cell cycle regulation
• B. DNA repair
• C. Apoptosis
• D. Angiogenesis
Correct Answer: B
Rationale: BRCA1 and BRCA2 are tumor suppressor genes involved
in DNA repair. Mutations impair the cell's ability to repair double-
strand DNA breaks, leading to genomic instability and increased
cancer risk, particularly for breast and ovarian cancers .
5. A patient with chronic alcohol use disorder presents with
jaundice and elevated liver enzymes. Liver biopsy shows fatty
infiltration (steatosis) of hepatocytes. This cellular change is best
described as:
• A. Hydropic swelling
4
