WGU D027 OBJECTIVE ASSESSMENT FINAL EXAM
2026/2027 COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS!! LATEST VERSION
1. A 55-year-old patient with chronic GERD undergoes an esophageal biopsy
that reveals replacement of normal squamous epithelium with columnar
epithelium containing goblet cells. This cellular adaptation is best described
as:
A) Hyperplasia
B) Metaplasia
C) Dysplasia
D) Anaplasia
Answer B: Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type
with another. Barrett’s esophagus represents metaplasia as the normal squamous
epithelium is replaced by columnar epithelium with goblet cells due to chronic
acid exposure .
2. A 45-year-old patient with a history of hypertension presents with acute
onset of severe chest pain radiating to the back. Blood pressure is 180/110
,mmHg in the right arm and 100/60 mmHg in the left arm. Which
pathophysiological process is most likely responsible?
A) Acute thrombosis of the left anterior descending coronary artery
B) Rupture of a cerebral artery aneurysm
C) Dissection of the tunica intima from the tunica media
D) Embolism from a left ventricular mural thrombus
Answer C: Dissection of the tunica intima from the tunica media
Rationale: The classic presentation of acute chest pain radiating to the back with
significant blood pressure differential between arms is characteristic of aortic
dissection, where blood enters the media and separates the layers of the aortic
wall .
3. Which insulin preparation is known to be the most painful during
subcutaneous injection?
A) Humalog
B) Novolog
C) Lantus (long-acting insulin)
D) Regular insulin
Answer C: Lantus (long-acting insulin)
Rationale: Lantus (insulin glargine) is often reported to be the most painful insulin
during injection due to its acidic pH formulation, which can cause stinging or
burning upon subcutaneous administration .
,4. What is the normal range for serum TSH levels?
A) 0.1 to 1.0 mIU/L
B) 0.4 to 4.0 mIU/L
C) 4.5 to 8.0 mIU/L
D) 10.0 to 20.0 mIU/L
Answer B: 0.4 to 4.0 mIU/L
Rationale: The normal range for TSH is 0.4 to 4.0 mIU/L. A value above the normal
range usually indicates hypothyroidism, while a value below indicates
hyperthyroidism .
5. In a patient with chronic heart failure, the cardiorenal syndrome is
primarily mediated by which compensatory mechanism?
A) Decreased renin-angiotensin-aldosterone system activity
B) Increased secretion of brain natriuretic peptide
C) Enhanced sympathetic nervous system outflow and renal vasoconstriction
D) Increased glomerular filtration rate
Answer C: Enhanced sympathetic nervous system outflow and renal
vasoconstriction
Rationale: In cardiorenal syndrome, reduced cardiac output triggers a massive
compensatory increase in sympathetic nervous system activity, causing renal
vasoconstriction that reduces renal blood flow and glomerular filtration rate,
leading to sodium and water retention .
, 6. A patient with G6PD deficiency should avoid which of the following?
A) Fava beans, naphthalene (mothballs), and sulfa drugs
B) Bananas and potatoes
C) Dairy products
D) Iron supplements
Answer A: Fava beans, naphthalene (mothballs), and sulfa drugs
Rationale: G6PD deficiency is an X-linked recessive disorder. Low NADPH leads to
oxidative hemolysis when exposed to triggers such as fava beans, naphthalene,
sulfa drugs, and certain other agents .
7. What is the most reliable laboratory assessment for evaluating blood sugar
control over the past 3 months?
A) Fasting blood glucose
B) Random blood glucose
C) Glycosylated hemoglobin (HbA1c)
D) Oral glucose tolerance test
Answer C: Glycosylated hemoglobin (HbA1c)
Rationale: HbA1c reflects average blood glucose levels over the previous 2-3
months. The goal is typically <6.5%, while a level >9% indicates poor glycemic
control .
8. In a patient with G6PD deficiency, the primary mechanism leading to
hemolytic anemia is:
2026/2027 COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS!! LATEST VERSION
1. A 55-year-old patient with chronic GERD undergoes an esophageal biopsy
that reveals replacement of normal squamous epithelium with columnar
epithelium containing goblet cells. This cellular adaptation is best described
as:
A) Hyperplasia
B) Metaplasia
C) Dysplasia
D) Anaplasia
Answer B: Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type
with another. Barrett’s esophagus represents metaplasia as the normal squamous
epithelium is replaced by columnar epithelium with goblet cells due to chronic
acid exposure .
2. A 45-year-old patient with a history of hypertension presents with acute
onset of severe chest pain radiating to the back. Blood pressure is 180/110
,mmHg in the right arm and 100/60 mmHg in the left arm. Which
pathophysiological process is most likely responsible?
A) Acute thrombosis of the left anterior descending coronary artery
B) Rupture of a cerebral artery aneurysm
C) Dissection of the tunica intima from the tunica media
D) Embolism from a left ventricular mural thrombus
Answer C: Dissection of the tunica intima from the tunica media
Rationale: The classic presentation of acute chest pain radiating to the back with
significant blood pressure differential between arms is characteristic of aortic
dissection, where blood enters the media and separates the layers of the aortic
wall .
3. Which insulin preparation is known to be the most painful during
subcutaneous injection?
A) Humalog
B) Novolog
C) Lantus (long-acting insulin)
D) Regular insulin
Answer C: Lantus (long-acting insulin)
Rationale: Lantus (insulin glargine) is often reported to be the most painful insulin
during injection due to its acidic pH formulation, which can cause stinging or
burning upon subcutaneous administration .
,4. What is the normal range for serum TSH levels?
A) 0.1 to 1.0 mIU/L
B) 0.4 to 4.0 mIU/L
C) 4.5 to 8.0 mIU/L
D) 10.0 to 20.0 mIU/L
Answer B: 0.4 to 4.0 mIU/L
Rationale: The normal range for TSH is 0.4 to 4.0 mIU/L. A value above the normal
range usually indicates hypothyroidism, while a value below indicates
hyperthyroidism .
5. In a patient with chronic heart failure, the cardiorenal syndrome is
primarily mediated by which compensatory mechanism?
A) Decreased renin-angiotensin-aldosterone system activity
B) Increased secretion of brain natriuretic peptide
C) Enhanced sympathetic nervous system outflow and renal vasoconstriction
D) Increased glomerular filtration rate
Answer C: Enhanced sympathetic nervous system outflow and renal
vasoconstriction
Rationale: In cardiorenal syndrome, reduced cardiac output triggers a massive
compensatory increase in sympathetic nervous system activity, causing renal
vasoconstriction that reduces renal blood flow and glomerular filtration rate,
leading to sodium and water retention .
, 6. A patient with G6PD deficiency should avoid which of the following?
A) Fava beans, naphthalene (mothballs), and sulfa drugs
B) Bananas and potatoes
C) Dairy products
D) Iron supplements
Answer A: Fava beans, naphthalene (mothballs), and sulfa drugs
Rationale: G6PD deficiency is an X-linked recessive disorder. Low NADPH leads to
oxidative hemolysis when exposed to triggers such as fava beans, naphthalene,
sulfa drugs, and certain other agents .
7. What is the most reliable laboratory assessment for evaluating blood sugar
control over the past 3 months?
A) Fasting blood glucose
B) Random blood glucose
C) Glycosylated hemoglobin (HbA1c)
D) Oral glucose tolerance test
Answer C: Glycosylated hemoglobin (HbA1c)
Rationale: HbA1c reflects average blood glucose levels over the previous 2-3
months. The goal is typically <6.5%, while a level >9% indicates poor glycemic
control .
8. In a patient with G6PD deficiency, the primary mechanism leading to
hemolytic anemia is:
