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WGU D236 PATHOPHYSIOLOGY OA EXAM 2026-2027 BANK
QUESTIONS WITH DETAILED VERIFIED ANSWERS EXAM
QUESTIONS WILL COME FROM HERE (100% CORRECT
ANSWERS A+ GRADED
1. A patient presents with chest pain that worsens when lying down
and improves when leaning forward. The pain is described as sharp and
pleuritic. Which of the following is the most likely diagnosis?
A. Stable angina
B. Acute pericarditis
C. Myocardial infarction
D. Pulmonary embolism
Answer: B. Acute pericarditis typically presents with sharp, pleuritic
chest pain that improves upon leaning forward and worsens when
supine. A friction rub may be auscultated. Stable angina is often
exertional and relieved by rest. Myocardial infarction pain is usually a
pressure-like sensation, not positional. Pulmonary embolism presents
with sudden dyspnea and pleuritic pain but is not classically relieved by
leaning forward.
2. A patient with a history of chronic hypertension develops dyspnea on
exertion, orthopnea, and bilateral pulmonary crackles. Which
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hemodynamic change is the primary cause of the pulmonary
congestion?
A. Increased right atrial pressure
B. Decreased left ventricular compliance
C. Increased left ventricular end-diastolic pressure
D. Decreased systemic vascular resistance
Answer: C. In left-sided heart failure, the left ventricle fails to pump
blood effectively, leading to increased left ventricular end-diastolic
pressure. This pressure is transmitted backward into the left atrium,
pulmonary veins, and pulmonary capillaries, causing pulmonary edema
and the associated symptoms.
3. A long-term smoker develops a chronic cough with copious sputum
production, cyanosis, and peripheral edema. Arterial blood gases reveal
hypoxemia and hypercapnia. Which condition does this clinical picture
most closely represent?
A. Pink puffer emphysema
B. Restrictive lung disease
C. Blue bloater chronic bronchitis
D. Bronchial asthma
Answer: C. "Blue bloater" refers to the phenotype of chronic bronchitis,
characterized by excessive mucus production, chronic cough,
hypoxemia, hypercapnia, and cor pulmonale leading to peripheral
edema. In contrast, "pink puffers" (emphysema) typically maintain
oxygenation longer and exhibit hyperinflation and pursed-lip breathing
without early cyanosis.
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4. A pathology report notes the presence of Reed-Sternberg cells in a
lymph node biopsy. This finding is diagnostic for which disorder?
A. Non-Hodgkin lymphoma
B. Hodgkin lymphoma
C. Acute lymphoblastic leukemia
D. Multiple myeloma
Answer: B. Reed-Sternberg cells, which are large, binucleated or
multinucleated giant cells with prominent nucleoli resembling an "owl's
eye," are the malignant hallmark of Hodgkin lymphoma and are
essential for its diagnosis.
5. A patient with type 1 diabetes presents with deep, rapid breathing, a
serum pH of 7.28, and a bicarbonate level of 12 mEq/L. Which
compensatory mechanism is primarily responsible for the breathing
pattern?
A. The kidneys are excreting excess bicarbonate
B. The lungs are blowing off carbon dioxide to reduce acidemia
C. The liver is increasing ketone production
D. The brainstem is depressed due to acidosis
Answer: B. In diabetic ketoacidosis, the patient develops a metabolic
acidosis. The respiratory compensation involves deep, rapid
respirations known as Kussmaul respirations, which aim to blow off
carbon dioxide, thereby decreasing the partial pressure of CO2 and
raising the pH toward normal.
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6. A fracture of the tibia is immobilized in a cast, and the patient
subsequently develops severe pain, pallor, paresthesia, and
pulselessness in the affected extremity. Which serious complication has
developed?
A. Deep vein thrombosis
B. Compartment syndrome
C. Fat embolism
D. Osteomyelitis
Answer: B. Compartment syndrome occurs when increased pressure
within a confined fascial space compromises circulation and tissue
function. The hallmark signs include pain out of proportion to the
injury, pallor, paresthesia, pulselessness, and paralysis.
7. A patient with cirrhosis develops ascites, spider angiomas, and
gynecomastia due to the liver's impaired ability to metabolize which
substance?
A. Ammonia
B. Estrogen
C. Bilirubin
D. Albumin
Answer: B. The cirrhotic liver fails to metabolize estrogen effectively,
leading to hyperestrogenism. This manifests as spider angiomas, palmar
erythema, gynecomastia, and testicular atrophy in males.
WGU D236 PATHOPHYSIOLOGY OA EXAM 2026-2027 BANK
QUESTIONS WITH DETAILED VERIFIED ANSWERS EXAM
QUESTIONS WILL COME FROM HERE (100% CORRECT
ANSWERS A+ GRADED
1. A patient presents with chest pain that worsens when lying down
and improves when leaning forward. The pain is described as sharp and
pleuritic. Which of the following is the most likely diagnosis?
A. Stable angina
B. Acute pericarditis
C. Myocardial infarction
D. Pulmonary embolism
Answer: B. Acute pericarditis typically presents with sharp, pleuritic
chest pain that improves upon leaning forward and worsens when
supine. A friction rub may be auscultated. Stable angina is often
exertional and relieved by rest. Myocardial infarction pain is usually a
pressure-like sensation, not positional. Pulmonary embolism presents
with sudden dyspnea and pleuritic pain but is not classically relieved by
leaning forward.
2. A patient with a history of chronic hypertension develops dyspnea on
exertion, orthopnea, and bilateral pulmonary crackles. Which
,2|Page
hemodynamic change is the primary cause of the pulmonary
congestion?
A. Increased right atrial pressure
B. Decreased left ventricular compliance
C. Increased left ventricular end-diastolic pressure
D. Decreased systemic vascular resistance
Answer: C. In left-sided heart failure, the left ventricle fails to pump
blood effectively, leading to increased left ventricular end-diastolic
pressure. This pressure is transmitted backward into the left atrium,
pulmonary veins, and pulmonary capillaries, causing pulmonary edema
and the associated symptoms.
3. A long-term smoker develops a chronic cough with copious sputum
production, cyanosis, and peripheral edema. Arterial blood gases reveal
hypoxemia and hypercapnia. Which condition does this clinical picture
most closely represent?
A. Pink puffer emphysema
B. Restrictive lung disease
C. Blue bloater chronic bronchitis
D. Bronchial asthma
Answer: C. "Blue bloater" refers to the phenotype of chronic bronchitis,
characterized by excessive mucus production, chronic cough,
hypoxemia, hypercapnia, and cor pulmonale leading to peripheral
edema. In contrast, "pink puffers" (emphysema) typically maintain
oxygenation longer and exhibit hyperinflation and pursed-lip breathing
without early cyanosis.
,3|Page
4. A pathology report notes the presence of Reed-Sternberg cells in a
lymph node biopsy. This finding is diagnostic for which disorder?
A. Non-Hodgkin lymphoma
B. Hodgkin lymphoma
C. Acute lymphoblastic leukemia
D. Multiple myeloma
Answer: B. Reed-Sternberg cells, which are large, binucleated or
multinucleated giant cells with prominent nucleoli resembling an "owl's
eye," are the malignant hallmark of Hodgkin lymphoma and are
essential for its diagnosis.
5. A patient with type 1 diabetes presents with deep, rapid breathing, a
serum pH of 7.28, and a bicarbonate level of 12 mEq/L. Which
compensatory mechanism is primarily responsible for the breathing
pattern?
A. The kidneys are excreting excess bicarbonate
B. The lungs are blowing off carbon dioxide to reduce acidemia
C. The liver is increasing ketone production
D. The brainstem is depressed due to acidosis
Answer: B. In diabetic ketoacidosis, the patient develops a metabolic
acidosis. The respiratory compensation involves deep, rapid
respirations known as Kussmaul respirations, which aim to blow off
carbon dioxide, thereby decreasing the partial pressure of CO2 and
raising the pH toward normal.
, 4|Page
6. A fracture of the tibia is immobilized in a cast, and the patient
subsequently develops severe pain, pallor, paresthesia, and
pulselessness in the affected extremity. Which serious complication has
developed?
A. Deep vein thrombosis
B. Compartment syndrome
C. Fat embolism
D. Osteomyelitis
Answer: B. Compartment syndrome occurs when increased pressure
within a confined fascial space compromises circulation and tissue
function. The hallmark signs include pain out of proportion to the
injury, pallor, paresthesia, pulselessness, and paralysis.
7. A patient with cirrhosis develops ascites, spider angiomas, and
gynecomastia due to the liver's impaired ability to metabolize which
substance?
A. Ammonia
B. Estrogen
C. Bilirubin
D. Albumin
Answer: B. The cirrhotic liver fails to metabolize estrogen effectively,
leading to hyperestrogenism. This manifests as spider angiomas, palmar
erythema, gynecomastia, and testicular atrophy in males.
