, D441 Objective Assessment – WGU
Pharmacology OA – (2026) Actual
Questions & Study Guide | Guarantee
Pass
1. A patient taking warfarin should be monitored most closely using which laboratory test?
A. aPTT
B. INR
C. Platelet count
D. Serum creatinine
Correct Answer: B. INR
Rationale: Warfarin therapy is monitored primarily with the INR, which measures the
anticoagulant effect and helps guide dosing.
2. Which adverse effect is most concerning in a patient taking an ACE inhibitor such as
lisinopril?
A. Mild headache
B. Dry cough
C. Angioedema
D. Increased appetite
Correct Answer: C. Angioedema
Rationale: Angioedema can cause potentially life-threatening airway obstruction and requires
immediate medical attention.
3. A patient taking digoxin reports nausea, visual disturbances, and weakness. What should
the nurse suspect?
A. Therapeutic response
B. Digoxin toxicity
, C. Hypoglycemia
D. Dehydration
Correct Answer: B. Digoxin toxicity
Rationale: GI symptoms, weakness, and visual changes such as blurred or yellow vision are
classic signs of digoxin toxicity.
4. Which electrolyte imbalance increases the risk of digoxin toxicity?
A. Hypernatremia
B. Hypercalcemia
C. Hypokalemia
D. Hypermagnesemia
Correct Answer: C. Hypokalemia
Rationale: Low potassium increases digoxin binding to cardiac tissue and increases the risk of
toxicity.
5. Which medication is commonly used as a rapid-acting rescue medication for an acute
asthma attack?
A. Montelukast
B. Albuterol
C. Fluticasone
D. Salmeterol
Correct Answer: B. Albuterol
Rationale: Albuterol is a short-acting beta₂ agonist that produces rapid bronchodilation and is
used for acute symptom relief.
6. A patient using an inhaled corticosteroid should be taught to:
A. Take it only during an acute asthma attack
B. Avoid drinking water afterward
C. Rinse the mouth after use
D. Take it with an antacid
Pharmacology OA – (2026) Actual
Questions & Study Guide | Guarantee
Pass
1. A patient taking warfarin should be monitored most closely using which laboratory test?
A. aPTT
B. INR
C. Platelet count
D. Serum creatinine
Correct Answer: B. INR
Rationale: Warfarin therapy is monitored primarily with the INR, which measures the
anticoagulant effect and helps guide dosing.
2. Which adverse effect is most concerning in a patient taking an ACE inhibitor such as
lisinopril?
A. Mild headache
B. Dry cough
C. Angioedema
D. Increased appetite
Correct Answer: C. Angioedema
Rationale: Angioedema can cause potentially life-threatening airway obstruction and requires
immediate medical attention.
3. A patient taking digoxin reports nausea, visual disturbances, and weakness. What should
the nurse suspect?
A. Therapeutic response
B. Digoxin toxicity
, C. Hypoglycemia
D. Dehydration
Correct Answer: B. Digoxin toxicity
Rationale: GI symptoms, weakness, and visual changes such as blurred or yellow vision are
classic signs of digoxin toxicity.
4. Which electrolyte imbalance increases the risk of digoxin toxicity?
A. Hypernatremia
B. Hypercalcemia
C. Hypokalemia
D. Hypermagnesemia
Correct Answer: C. Hypokalemia
Rationale: Low potassium increases digoxin binding to cardiac tissue and increases the risk of
toxicity.
5. Which medication is commonly used as a rapid-acting rescue medication for an acute
asthma attack?
A. Montelukast
B. Albuterol
C. Fluticasone
D. Salmeterol
Correct Answer: B. Albuterol
Rationale: Albuterol is a short-acting beta₂ agonist that produces rapid bronchodilation and is
used for acute symptom relief.
6. A patient using an inhaled corticosteroid should be taught to:
A. Take it only during an acute asthma attack
B. Avoid drinking water afterward
C. Rinse the mouth after use
D. Take it with an antacid
