WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 | Page 1 | Passing Score: 80%
WESTERN GOVERNORS UNIVERSITY
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update)
Questions and Verified Answers| Grade A 2026/2027
PATHOPHYSIOLOGY - Official Exam 2026/2027
100 80% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cellular Biology & Pathophysiology Q1-20
Section 2 Immune System & Inflammatory Response Q21-40
Section 3 Cardiovascular & Respiratory Q41-60
Section 4 Neurological & Musculoskeletal Q61-80
Section 5 Renal, Endocrine & Gastrointestinal Q81-100
Instructions: Select the single best answer for each question. This exam is designed for WGU D236 Pathophysiology
exam preparation. Passing score: 80% (80 questions correct).
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 1
, SECTION 1 | Cellular Biology & Pathophysiology | Q1-Q20 | WGU D236 Pathophysiology Exam (Latest 2026/2027
Update) Questions and Verified Answers| Grade A 2026/2027 2026/2027
Q1 Question 1 of 100
A 54-year-old male with a 30-pack-year smoking history presents with persistent cough and
unintentional weight loss. Biopsy reveals cells with enlarged, hyperchromatic nuclei and abnormal
mitotic figures. The pathologist identifies these cellular changes as most consistent with which
process?
A. Hypertrophy resulting from increased functional demand on the bronchial epithelium
B. Dysplasia representing disordered cell growth and maturation with potential for malignancy
C. Metaplasia where one mature cell type is replaced by another more resistant cell type
D. Hyperplasia characterized by an increase in the number of normal-appearing cells
Correct Answer: B
Rationale:
Enlarged hyperchromatic nuclei and abnormal mitotic figures are hallmarks of dysplasia, which represents disordered
growth and maturation with significant malignant potential. Metaplasia involves replacement by another mature cell
type without the nuclear atypia described, while hyperplasia and hypertrophy involve increases in cell number and size
respectively with normal morphology.
Q2 Question 2 of 100
A 62-year-old female with coronary artery disease experiences sudden onset of severe chest pain.
Cardiac biomarkers reveal elevated troponin levels, and ECG shows ST-segment elevation. The
myocardial cell death in this patient is best classified as which type of necrosis?
A. Liquefactive necrosis characterized by enzymatic digestion and liquefaction of tissue
B. Caseous necrosis marked by cheese-like appearance and granulomatous inflammation
C. Coagulative necrosis where cell architecture is preserved while proteins are denatured
D. Fat necrosis resulting from lipase action on adipose tissue in the pancreatic region
Correct Answer: C
Rationale:
Coagulative necrosis is the hallmark of ischemic injury in most tissues except the brain, where protein denaturation
preserves the tissue architecture while the cells are dead. Liquefactive necrosis occurs in the brain and with bacterial
infections, caseous necrosis is associated with tuberculosis, and fat necrosis involves adipose tissue destruction.
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 2
, Q3 Question 3 of 100
A 48-year-old male presents with jaundice and elevated liver enzymes after a recent acetaminophen
overdose. The hepatocyte injury in this case is primarily mediated by which cellular mechanism?
A. Free radical injury caused by a toxic metabolite depleting glutathione and causing lipid
peroxidation
B. Apoptosis triggered by intrinsic signaling pathways activating caspase cascades
C. Complement-mediated cell lysis from immune complex deposition in hepatic sinusoids
D. Ischemic hypoxia from reduced portal blood flow leading to ATP depletion and swelling
Correct Answer: A
Rationale:
Acetaminophen is metabolized to NAPQI, a toxic free radical that depletes glutathione and causes oxidative stress,
lipid peroxidation, and membrane damage in hepatocytes. While apoptosis and ischemia can cause liver injury,
acetaminophen toxicity specifically operates through free radical generation and glutathione depletion.
Q4 Question 4 of 100
A 7-year-old boy with cystic fibrosis experiences recurrent pulmonary infections. Genetic testing
reveals a mutation in the CFTR gene. This condition exemplifies which type of genetic disorder?
A. Autosomal dominant disorder where one affected allele is sufficient to cause disease
B. Autosomal recessive disorder requiring two defective alleles for phenotypic expression
C. X-linked recessive disorder affecting males who inherit the defective gene from carrier mothers
D. Mitochondrial disorder transmitted exclusively from affected mothers to all offspring
Correct Answer: B
Rationale:
Cystic fibrosis is an autosomal recessive disorder caused by mutations in the CFTR gene on chromosome 7, requiring
two defective alleles for the disease to manifest. Autosomal dominant conditions require only one affected allele, and
CF is not X-linked or mitochondrial in inheritance pattern.
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 3
, Q5 Question 5 of 100
A 55-year-old woman with breast cancer is found to have amplification of the HER2 gene on
chromosome 17. The process by which gene copy number increases without whole-chromosome
duplication is called which of the following?
A. Point mutation creating a single nucleotide change in the HER2 coding sequence
B. Gene amplification producing multiple copies of a specific gene region on the chromosome
C. Chromosomal translocation moving the HER2 gene to a different chromosome entirely
D. Frameshift mutation caused by insertion or deletion of nucleotides in the gene
Correct Answer: B
Rationale:
Gene amplification is the process by which multiple copies of a specific gene region are produced on the same
chromosome without whole-chromosome duplication, commonly seen with HER2 in breast cancer. Point mutations
affect single nucleotides, translocations move genes between chromosomes, and frameshifts alter the reading frame.
Q6 Question 6 of 100
A 60-year-old male with colon cancer is found to have lost one allele of a tumor suppressor gene
through deletion and the remaining allele through hypermethylation. This two-step process is known
as which of the following?
A. Oncogene activation through gain-of-function mutations in both gene copies
B. Knudson's two-hit hypothesis requiring inactivation of both tumor suppressor alleles
C. Genomic imprinting where only the maternal allele is normally expressed in tissues
D. Dominant negative mutation where one mutant protein disrupts the normal protein function
Correct Answer: B
Rationale:
Knudson's two-hit hypothesis explains that tumor suppressor genes require inactivation of both alleles for
tumorigenesis, as described in this patient with one allele deleted and the other silenced by hypermethylation.
Oncogene activation requires only one affected allele, and genomic imprinting and dominant negative effects are
different mechanisms.
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 4
WESTERN GOVERNORS UNIVERSITY
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update)
Questions and Verified Answers| Grade A 2026/2027
PATHOPHYSIOLOGY - Official Exam 2026/2027
100 80% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cellular Biology & Pathophysiology Q1-20
Section 2 Immune System & Inflammatory Response Q21-40
Section 3 Cardiovascular & Respiratory Q41-60
Section 4 Neurological & Musculoskeletal Q61-80
Section 5 Renal, Endocrine & Gastrointestinal Q81-100
Instructions: Select the single best answer for each question. This exam is designed for WGU D236 Pathophysiology
exam preparation. Passing score: 80% (80 questions correct).
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 1
, SECTION 1 | Cellular Biology & Pathophysiology | Q1-Q20 | WGU D236 Pathophysiology Exam (Latest 2026/2027
Update) Questions and Verified Answers| Grade A 2026/2027 2026/2027
Q1 Question 1 of 100
A 54-year-old male with a 30-pack-year smoking history presents with persistent cough and
unintentional weight loss. Biopsy reveals cells with enlarged, hyperchromatic nuclei and abnormal
mitotic figures. The pathologist identifies these cellular changes as most consistent with which
process?
A. Hypertrophy resulting from increased functional demand on the bronchial epithelium
B. Dysplasia representing disordered cell growth and maturation with potential for malignancy
C. Metaplasia where one mature cell type is replaced by another more resistant cell type
D. Hyperplasia characterized by an increase in the number of normal-appearing cells
Correct Answer: B
Rationale:
Enlarged hyperchromatic nuclei and abnormal mitotic figures are hallmarks of dysplasia, which represents disordered
growth and maturation with significant malignant potential. Metaplasia involves replacement by another mature cell
type without the nuclear atypia described, while hyperplasia and hypertrophy involve increases in cell number and size
respectively with normal morphology.
Q2 Question 2 of 100
A 62-year-old female with coronary artery disease experiences sudden onset of severe chest pain.
Cardiac biomarkers reveal elevated troponin levels, and ECG shows ST-segment elevation. The
myocardial cell death in this patient is best classified as which type of necrosis?
A. Liquefactive necrosis characterized by enzymatic digestion and liquefaction of tissue
B. Caseous necrosis marked by cheese-like appearance and granulomatous inflammation
C. Coagulative necrosis where cell architecture is preserved while proteins are denatured
D. Fat necrosis resulting from lipase action on adipose tissue in the pancreatic region
Correct Answer: C
Rationale:
Coagulative necrosis is the hallmark of ischemic injury in most tissues except the brain, where protein denaturation
preserves the tissue architecture while the cells are dead. Liquefactive necrosis occurs in the brain and with bacterial
infections, caseous necrosis is associated with tuberculosis, and fat necrosis involves adipose tissue destruction.
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 2
, Q3 Question 3 of 100
A 48-year-old male presents with jaundice and elevated liver enzymes after a recent acetaminophen
overdose. The hepatocyte injury in this case is primarily mediated by which cellular mechanism?
A. Free radical injury caused by a toxic metabolite depleting glutathione and causing lipid
peroxidation
B. Apoptosis triggered by intrinsic signaling pathways activating caspase cascades
C. Complement-mediated cell lysis from immune complex deposition in hepatic sinusoids
D. Ischemic hypoxia from reduced portal blood flow leading to ATP depletion and swelling
Correct Answer: A
Rationale:
Acetaminophen is metabolized to NAPQI, a toxic free radical that depletes glutathione and causes oxidative stress,
lipid peroxidation, and membrane damage in hepatocytes. While apoptosis and ischemia can cause liver injury,
acetaminophen toxicity specifically operates through free radical generation and glutathione depletion.
Q4 Question 4 of 100
A 7-year-old boy with cystic fibrosis experiences recurrent pulmonary infections. Genetic testing
reveals a mutation in the CFTR gene. This condition exemplifies which type of genetic disorder?
A. Autosomal dominant disorder where one affected allele is sufficient to cause disease
B. Autosomal recessive disorder requiring two defective alleles for phenotypic expression
C. X-linked recessive disorder affecting males who inherit the defective gene from carrier mothers
D. Mitochondrial disorder transmitted exclusively from affected mothers to all offspring
Correct Answer: B
Rationale:
Cystic fibrosis is an autosomal recessive disorder caused by mutations in the CFTR gene on chromosome 7, requiring
two defective alleles for the disease to manifest. Autosomal dominant conditions require only one affected allele, and
CF is not X-linked or mitochondrial in inheritance pattern.
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 3
, Q5 Question 5 of 100
A 55-year-old woman with breast cancer is found to have amplification of the HER2 gene on
chromosome 17. The process by which gene copy number increases without whole-chromosome
duplication is called which of the following?
A. Point mutation creating a single nucleotide change in the HER2 coding sequence
B. Gene amplification producing multiple copies of a specific gene region on the chromosome
C. Chromosomal translocation moving the HER2 gene to a different chromosome entirely
D. Frameshift mutation caused by insertion or deletion of nucleotides in the gene
Correct Answer: B
Rationale:
Gene amplification is the process by which multiple copies of a specific gene region are produced on the same
chromosome without whole-chromosome duplication, commonly seen with HER2 in breast cancer. Point mutations
affect single nucleotides, translocations move genes between chromosomes, and frameshifts alter the reading frame.
Q6 Question 6 of 100
A 60-year-old male with colon cancer is found to have lost one allele of a tumor suppressor gene
through deletion and the remaining allele through hypermethylation. This two-step process is known
as which of the following?
A. Oncogene activation through gain-of-function mutations in both gene copies
B. Knudson's two-hit hypothesis requiring inactivation of both tumor suppressor alleles
C. Genomic imprinting where only the maternal allele is normally expressed in tissues
D. Dominant negative mutation where one mutant protein disrupts the normal protein function
Correct Answer: B
Rationale:
Knudson's two-hit hypothesis explains that tumor suppressor genes require inactivation of both alleles for
tumorigenesis, as described in this patient with one allele deleted and the other silenced by hypermethylation.
Oncogene activation requires only one affected allele, and genomic imprinting and dominant negative effects are
different mechanisms.
WGU D236 Pathophysiology Exam (Latest 2026/2027 Update) Questions and Verified Answers| Grade A 2026/2027 - 2026/2027 | Passing Score: 80% | Page 4
