Adult Health II (D446) New OA 2 Exam 2
V1 | Adult Health II (D446) New OA 2 Exam
Q&A | WGU
1. A patient with left-sided heart failure is being assessed. Which clinical manifestation
should the nurse expect to find?
A. Jugular venous distention
B. Crackles in the lungs
C. Splenomegaly
D. Peripheral edema
Answer: B
Rationale: Left-sided heart failure leads to pulmonary congestion, resulting in crackles,
dyspnea, and orthopnea. Options A, B, and D are signs of right-sided heart failure.
2. Which arterial blood gas (ABG) result is most indicative of respiratory acidosis?
A. pH 7.30, PaCO2 35 mmHg, HCO3 18 mEq/L
B. pH 7.48, PaCO2 30 mmHg, HCO3 22 mEq/L
C. pH 7.32, PaCO2 50 mmHg, HCO3 24 mEq/L
D. pH 7.50, PaCO2 40 mmHg, HCO3 32 mEq/L
Answer: C
,Rationale: Respiratory acidosis is characterized by a low pH (<7.35) and a high PaCO2
(>45 mmHg). Choice A represents uncompensated respiratory acidosis.
3. A patient is prescribed Furosemide for heart failure management. Which laboratory value
is the priority for the nurse to monitor?
A. Serum Sodium
B. Serum Calcium
C. Serum Potassium
D. Serum Hemoglobin
Answer: C
Rationale: Furosemide is a loop diuretic that causes the excretion of potassium.
Hypokalemia is a significant risk and can lead to cardiac arrhythmias.
4. Which assessment finding is a hallmark sign of a tension pneumothorax?
A. Mediastinal shift toward the unaffected side
B. Dullness on percussion
C. Increased breath sounds on the affected side
D. Bradycardia
Answer: A
Rationale: Tension pneumothorax causes air to build up in the pleural space, increasing
pressure and shifting the mediastinum (including the trachea) toward the unaffected side.
, 5. What is the primary goal of using PEEP (Positive End-Expiratory Pressure) in a patient with
ARDS?
A. To keep the alveoli open and improve oxygenation
B. To prevent ventilator-associated pneumonia
C. To decrease the work of breathing
D. To increase tidal volume
Answer: A
Rationale: PEEP prevents alveolar collapse at the end of expiration, which improves gas
exchange and increases functional residual capacity in patients with ARDS.
6. A patient arrives in the ER with crushing chest pain. Which cardiac biomarker is most
specific for myocardial injury?
A. Myoglobin
B. CK-MB
C. Troponin I
D. LDH
Answer: C
Rationale: Troponin I and Troponin T are highly specific markers for myocardial damage
and are the preferred tests for diagnosing an MI.
V1 | Adult Health II (D446) New OA 2 Exam
Q&A | WGU
1. A patient with left-sided heart failure is being assessed. Which clinical manifestation
should the nurse expect to find?
A. Jugular venous distention
B. Crackles in the lungs
C. Splenomegaly
D. Peripheral edema
Answer: B
Rationale: Left-sided heart failure leads to pulmonary congestion, resulting in crackles,
dyspnea, and orthopnea. Options A, B, and D are signs of right-sided heart failure.
2. Which arterial blood gas (ABG) result is most indicative of respiratory acidosis?
A. pH 7.30, PaCO2 35 mmHg, HCO3 18 mEq/L
B. pH 7.48, PaCO2 30 mmHg, HCO3 22 mEq/L
C. pH 7.32, PaCO2 50 mmHg, HCO3 24 mEq/L
D. pH 7.50, PaCO2 40 mmHg, HCO3 32 mEq/L
Answer: C
,Rationale: Respiratory acidosis is characterized by a low pH (<7.35) and a high PaCO2
(>45 mmHg). Choice A represents uncompensated respiratory acidosis.
3. A patient is prescribed Furosemide for heart failure management. Which laboratory value
is the priority for the nurse to monitor?
A. Serum Sodium
B. Serum Calcium
C. Serum Potassium
D. Serum Hemoglobin
Answer: C
Rationale: Furosemide is a loop diuretic that causes the excretion of potassium.
Hypokalemia is a significant risk and can lead to cardiac arrhythmias.
4. Which assessment finding is a hallmark sign of a tension pneumothorax?
A. Mediastinal shift toward the unaffected side
B. Dullness on percussion
C. Increased breath sounds on the affected side
D. Bradycardia
Answer: A
Rationale: Tension pneumothorax causes air to build up in the pleural space, increasing
pressure and shifting the mediastinum (including the trachea) toward the unaffected side.
, 5. What is the primary goal of using PEEP (Positive End-Expiratory Pressure) in a patient with
ARDS?
A. To keep the alveoli open and improve oxygenation
B. To prevent ventilator-associated pneumonia
C. To decrease the work of breathing
D. To increase tidal volume
Answer: A
Rationale: PEEP prevents alveolar collapse at the end of expiration, which improves gas
exchange and increases functional residual capacity in patients with ARDS.
6. A patient arrives in the ER with crushing chest pain. Which cardiac biomarker is most
specific for myocardial injury?
A. Myoglobin
B. CK-MB
C. Troponin I
D. LDH
Answer: C
Rationale: Troponin I and Troponin T are highly specific markers for myocardial damage
and are the preferred tests for diagnosing an MI.
