WGU D027
OBJECTIVE ASSESSMENT - EXAM
WGU D027 OA Exam Advanced
Pathopharmacological Foundations
Tested Questions (Latest 2026/2027)
and Verified Rationalized Answers
50
100% Guarantee Pass 2026/2027 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
• Pharmacokinetics & Pharmacodynamics • Gastrointestinal Pathophysiology
• Cardiovascular Pathophysiology • Renal & Endocrine Dysfunction
• Respiratory System Disorders • Immune System & Autoimmunity
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 1 of 27 COVER PAGE - 1
, SECTION 1 | Pharmacology | Q1-Q10 | WGU D027 2026/2027
Q1 Question 1 of 50
Q1. A 68-year-old patient with chronic heart failure is prescribed digoxin 0.125 mg daily.
The nurse reviews the patient's laboratory values and notes a serum potassium level of
3.1 mEq/L. What is the priority nursing action before administering the next dose?
A. Administer the digoxin as scheduled since the dose is low.
B. Hold the digoxin and notify the provider about the hypokalemia.
C. Give a potassium supplement and then administer the digoxin.
D. Recheck the potassium level in two hours before making a decision.
Correct Answer: B
Rationale:
Hypokalemia increases the risk of digoxin toxicity by displacing digoxin from tissue-binding sites and reducing
renal excretion. The nurse must hold the dose and notify the provider. Administering digoxin with low
potassium can precipitate life-threatening arrhythmias.
Q2 Question 2 of 50
Q2. A 54-year-old male with type 2 diabetes is started on metformin 500 mg twice daily.
During the medication education session, the nurse emphasizes which important safety
precaution?
A. Take the medication on an empty stomach to improve absorption.
B. Monitor blood glucose only once per week while on metformin.
C. Discontinue the medication if mild diarrhea develops after two weeks.
D. Avoid alcohol consumption while taking this medication.
Correct Answer: D
Rationale:
Metformin can cause lactic acidosis, and alcohol increases this risk by impairing hepatic lactate clearance and
potentially causing hypoglycemia. Patients should be instructed to avoid excessive alcohol intake while taking
metformin.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 2 of 27
, SECTION 1 | Pharmacology | Q1-Q10 | WGU D027 2026/2027
Q3 Question 3 of 50
Q3. A 42-year-old woman with a history of peptic ulcer disease is prescribed omeprazole
20 mg daily. The nurse explains that this medication works primarily by which
mechanism?
A. Inhibiting the proton pump in the gastric parietal cells.
B. Blocking histamine-2 receptors in the gastric parietal cells.
C. Neutralizing gastric acid through chemical buffering.
D. Stimulating prostaglandin production in the gastric mucosa.
Correct Answer: A
Rationale:
Omeprazole is a proton pump inhibitor that irreversibly blocks the hydrogen-potassium ATPase enzyme in
gastric parietal cells, reducing gastric acid secretion. This is more potent than H2 blockers like ranitidine and
provides longer acid suppression.
Q4 Question 4 of 50
Q4. A 35-year-old patient receiving intravenous heparin therapy has an aPTT result of 90
seconds. The therapeutic range is 60-80 seconds. What is the most appropriate nursing
action?
A. Continue the current heparin infusion rate and recheck in 4 hours.
B. Increase the heparin infusion rate to achieve a higher therapeutic effect.
C. Decrease the heparin infusion rate and notify the provider.
D. Discontinue the heparin infusion and administer protamine sulfate immediately.
Correct Answer: C
Rationale:
An aPTT of 90 seconds is above the therapeutic range, indicating supratherapeutic anticoagulation. The
nurse should decrease the infusion rate and notify the provider. Protamine sulfate is reserved for significant
bleeding or severe overdose, not mild supratherapeutic levels.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 3 of 27
OBJECTIVE ASSESSMENT - EXAM
WGU D027 OA Exam Advanced
Pathopharmacological Foundations
Tested Questions (Latest 2026/2027)
and Verified Rationalized Answers
50
100% Guarantee Pass 2026/2027 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
• Pharmacokinetics & Pharmacodynamics • Gastrointestinal Pathophysiology
• Cardiovascular Pathophysiology • Renal & Endocrine Dysfunction
• Respiratory System Disorders • Immune System & Autoimmunity
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 1 of 27 COVER PAGE - 1
, SECTION 1 | Pharmacology | Q1-Q10 | WGU D027 2026/2027
Q1 Question 1 of 50
Q1. A 68-year-old patient with chronic heart failure is prescribed digoxin 0.125 mg daily.
The nurse reviews the patient's laboratory values and notes a serum potassium level of
3.1 mEq/L. What is the priority nursing action before administering the next dose?
A. Administer the digoxin as scheduled since the dose is low.
B. Hold the digoxin and notify the provider about the hypokalemia.
C. Give a potassium supplement and then administer the digoxin.
D. Recheck the potassium level in two hours before making a decision.
Correct Answer: B
Rationale:
Hypokalemia increases the risk of digoxin toxicity by displacing digoxin from tissue-binding sites and reducing
renal excretion. The nurse must hold the dose and notify the provider. Administering digoxin with low
potassium can precipitate life-threatening arrhythmias.
Q2 Question 2 of 50
Q2. A 54-year-old male with type 2 diabetes is started on metformin 500 mg twice daily.
During the medication education session, the nurse emphasizes which important safety
precaution?
A. Take the medication on an empty stomach to improve absorption.
B. Monitor blood glucose only once per week while on metformin.
C. Discontinue the medication if mild diarrhea develops after two weeks.
D. Avoid alcohol consumption while taking this medication.
Correct Answer: D
Rationale:
Metformin can cause lactic acidosis, and alcohol increases this risk by impairing hepatic lactate clearance and
potentially causing hypoglycemia. Patients should be instructed to avoid excessive alcohol intake while taking
metformin.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 2 of 27
, SECTION 1 | Pharmacology | Q1-Q10 | WGU D027 2026/2027
Q3 Question 3 of 50
Q3. A 42-year-old woman with a history of peptic ulcer disease is prescribed omeprazole
20 mg daily. The nurse explains that this medication works primarily by which
mechanism?
A. Inhibiting the proton pump in the gastric parietal cells.
B. Blocking histamine-2 receptors in the gastric parietal cells.
C. Neutralizing gastric acid through chemical buffering.
D. Stimulating prostaglandin production in the gastric mucosa.
Correct Answer: A
Rationale:
Omeprazole is a proton pump inhibitor that irreversibly blocks the hydrogen-potassium ATPase enzyme in
gastric parietal cells, reducing gastric acid secretion. This is more potent than H2 blockers like ranitidine and
provides longer acid suppression.
Q4 Question 4 of 50
Q4. A 35-year-old patient receiving intravenous heparin therapy has an aPTT result of 90
seconds. The therapeutic range is 60-80 seconds. What is the most appropriate nursing
action?
A. Continue the current heparin infusion rate and recheck in 4 hours.
B. Increase the heparin infusion rate to achieve a higher therapeutic effect.
C. Decrease the heparin infusion rate and notify the provider.
D. Discontinue the heparin infusion and administer protamine sulfate immediately.
Correct Answer: C
Rationale:
An aPTT of 90 seconds is above the therapeutic range, indicating supratherapeutic anticoagulation. The
nurse should decrease the infusion rate and notify the provider. Protamine sulfate is reserved for significant
bleeding or severe overdose, not mild supratherapeutic levels.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 3 of 27
