WGU D236 PATHOPHYSIOLOGY OBJECTIVE
ASSESSMENT LATEST UPDATED 2026-2027 ACTUAL
FINAL EXAM WITH ALL POSSIBLE AND WELL
ELABORATED 100 PRACTICE QUESTIONS AND 100%
CORRECT VERIFIED ANSWERS FULLY SOLVED PLUS
DETAILED RATIONALES INCLUDING ANSWER KEY
(COMPLETE A+ SOLUTIONS) NEWLY UPDATED
VERSION FULL REVISED RATED A+ BRAND NEW!!!
1. A patient with a history of asthma presents with
increased respiratory rate, confusion, and an
arterial blood gas showing pH 7.28, PaCO2 55
mmHg, and HCO3- 24 mEq/L. Which condition is
most likely?
A. Metabolic acidosis
B. Respiratory alkalosis
C. Metabolic alkalosis
D. Respiratory acidosis
Correct Answer: D
,Rationale: Respiratory acidosis is characterized by
alveolar hypoventilation, leading to CO2 retention
(elevated PaCO2) and a subsequent drop in blood
pH. The HCO3- is normal in the acute phase.
2. Which pathophysiological mechanism is the
primary cause of type 1 diabetes mellitus?
A. Peripheral insulin resistance
B. Autoimmune destruction of pancreatic beta cells
C. Excessive secretion of glucagon
D. Inactivation of insulin by antibodies
Correct Answer: B
Rationale: Type 1 diabetes results from an
absolute insulin deficiency caused by the
autoimmune destruction of the insulin-producing
beta cells in the pancreas .
3. A patient with severe liver cirrhosis develops
ascites. What is the primary pathophysiological
mechanism contributing to this fluid
accumulation?
A. Increased capillary hydrostatic pressure from
right-sided heart failure
,B. Portal hypertension and decreased plasma
oncotic pressure from hypoalbuminemia
C. Obstruction of the lymphatic system
D. Increased antidiuretic hormone (ADH) secretion
Correct Answer: B
Rationale: Ascites in cirrhosis results from a
combination of portal hypertension (increased
hydrostatic pressure) and hypoalbuminemia
(decreased oncotic pressure), which forces fluid out
of the vascular space into the peritoneal cavity .
4. What is the hallmark finding in the
cerebrospinal fluid (CSF) that distinguishes
Hodgkin lymphoma from other lymphomas?
A. Presence of B-cells
B. Presence of Reed-Sternberg cells
C. Elevated CD4+ T-cell count
D. Decreased glucose levels
Correct Answer: B
Rationale: Hodgkin lymphoma is identified by the
presence of large, cancerous lymphocytes known
as Reed-Sternberg cells .
, 5. A patient with untreated diabetic ketoacidosis
(DKA) would most likely have which laboratory
finding?
A. Decreased anion gap and decreased HCO3-
B. Increased anion gap and decreased HCO3-
C. Decreased anion gap and increased HCO3-
D. Increased anion gap and increased HCO3-
Correct Answer: B
Rationale: DKA leads to the accumulation of
ketone bodies, which are unmeasured anions. This
results in an increased anion gap metabolic
acidosis, with a corresponding decrease in serum
bicarbonate (HCO3-) as it buffers the acid.
6. A patient present with a "bull's-eye" or target-
like rash (erythema migrans) after a tick bite.
Which infectious disease should the healthcare
provider suspect?
A. West Nile virus
B. Rocky Mountain spotted fever
C. Lyme disease
D. Erythema infectiosum (Fifth disease)
Correct Answer: C
ASSESSMENT LATEST UPDATED 2026-2027 ACTUAL
FINAL EXAM WITH ALL POSSIBLE AND WELL
ELABORATED 100 PRACTICE QUESTIONS AND 100%
CORRECT VERIFIED ANSWERS FULLY SOLVED PLUS
DETAILED RATIONALES INCLUDING ANSWER KEY
(COMPLETE A+ SOLUTIONS) NEWLY UPDATED
VERSION FULL REVISED RATED A+ BRAND NEW!!!
1. A patient with a history of asthma presents with
increased respiratory rate, confusion, and an
arterial blood gas showing pH 7.28, PaCO2 55
mmHg, and HCO3- 24 mEq/L. Which condition is
most likely?
A. Metabolic acidosis
B. Respiratory alkalosis
C. Metabolic alkalosis
D. Respiratory acidosis
Correct Answer: D
,Rationale: Respiratory acidosis is characterized by
alveolar hypoventilation, leading to CO2 retention
(elevated PaCO2) and a subsequent drop in blood
pH. The HCO3- is normal in the acute phase.
2. Which pathophysiological mechanism is the
primary cause of type 1 diabetes mellitus?
A. Peripheral insulin resistance
B. Autoimmune destruction of pancreatic beta cells
C. Excessive secretion of glucagon
D. Inactivation of insulin by antibodies
Correct Answer: B
Rationale: Type 1 diabetes results from an
absolute insulin deficiency caused by the
autoimmune destruction of the insulin-producing
beta cells in the pancreas .
3. A patient with severe liver cirrhosis develops
ascites. What is the primary pathophysiological
mechanism contributing to this fluid
accumulation?
A. Increased capillary hydrostatic pressure from
right-sided heart failure
,B. Portal hypertension and decreased plasma
oncotic pressure from hypoalbuminemia
C. Obstruction of the lymphatic system
D. Increased antidiuretic hormone (ADH) secretion
Correct Answer: B
Rationale: Ascites in cirrhosis results from a
combination of portal hypertension (increased
hydrostatic pressure) and hypoalbuminemia
(decreased oncotic pressure), which forces fluid out
of the vascular space into the peritoneal cavity .
4. What is the hallmark finding in the
cerebrospinal fluid (CSF) that distinguishes
Hodgkin lymphoma from other lymphomas?
A. Presence of B-cells
B. Presence of Reed-Sternberg cells
C. Elevated CD4+ T-cell count
D. Decreased glucose levels
Correct Answer: B
Rationale: Hodgkin lymphoma is identified by the
presence of large, cancerous lymphocytes known
as Reed-Sternberg cells .
, 5. A patient with untreated diabetic ketoacidosis
(DKA) would most likely have which laboratory
finding?
A. Decreased anion gap and decreased HCO3-
B. Increased anion gap and decreased HCO3-
C. Decreased anion gap and increased HCO3-
D. Increased anion gap and increased HCO3-
Correct Answer: B
Rationale: DKA leads to the accumulation of
ketone bodies, which are unmeasured anions. This
results in an increased anion gap metabolic
acidosis, with a corresponding decrease in serum
bicarbonate (HCO3-) as it buffers the acid.
6. A patient present with a "bull's-eye" or target-
like rash (erythema migrans) after a tick bite.
Which infectious disease should the healthcare
provider suspect?
A. West Nile virus
B. Rocky Mountain spotted fever
C. Lyme disease
D. Erythema infectiosum (Fifth disease)
Correct Answer: C
