NURS 251 Module 3 Exam – Pharmacology (Portage) 2026 UP… 2026 Update • Verified Answers
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
NURS 251 Module 3 Exam – Pharmacology (Portage)
2026 UPDATE
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
Exam (Elaborations) • Actual Questions & Rationales Page 1
,NURS 251 Module 3 Exam – Pharmacology (Portage) 2026 UP… 2026 Update • Verified Answers
Questions & Verified Answers
1. A patient is prescribed Bethanechol (Urecholine) for urinary retention. Which of the following
is a primary contraindication for this medication?
A. Glaucoma
B. Intestinal obstruction
C. Tachycardia
D. Hypothyroidism
Answer: B
Rationale: Bethanechol is a cholinergic agonist that increases peristalsis and bladder contraction. If an
obstruction is present, the increased pressure can lead to rupture. Recognizing this principle allows the nurse
to prioritize care, anticipate complications, and provide accurate patient education.
2. A patient is receiving Atropine preoperatively. The nurse explains that this medication is
used to:
A. Reduce anxiety
B. Decrease oral and respiratory secretions
C. Prevent postoperative nausea
D. Induce sedation
Answer: B
Rationale: Atropine is an anticholinergic drug used to decrease secretions to prevent aspiration during surgery
and to treat bradycardia. Applying this knowledge in clinical settings supports safe, evidence-based practice
and improves patient outcomes. This is an important clinical concept because selecting the correct answer (B)
requires understanding both the pathophysiology and the practical nursing implications.
3. Which of the following assessments is most critical for a patient receiving Morphine sulfate?
A. Respiratory rate
B. Temperature
C. Blood pressure
D. Bowel sounds
Answer: A
Rationale: Respiratory depression is the most serious adverse effect of opioids like morphine. It must be
monitored closely. Applying this knowledge in clinical settings supports safe, evidence-based practice and
improves patient outcomes. This is an important clinical concept because selecting the correct answer (A)
requires understanding both the pathophysiology and the practical nursing implications.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, NURS 251 Module 3 Exam – Pharmacology (Portage) 2026 UP… 2026 Update • Verified Answers
4. A patient with Parkinson’s disease is prescribed Levodopa-Carbidopa. What is the primary
purpose of adding Carbidopa?
A. To increase the metabolism of Levodopa
B. To prevent Levodopa from crossing the blood-brain barrier
C. To reduce the psychiatric side effects of Levodopa
D. To inhibit the breakdown of Levodopa in the periphery
Answer: D
Rationale: Carbidopa prevents the peripheral metabolism of levodopa, allowing more levodopa to reach the
brain to be converted to dopamine. Applying this knowledge in clinical settings supports safe, evidence-based
practice and improves patient outcomes. This is an important clinical concept because selecting the correct
answer (D) requires understanding both the pathophysiology and the practical nursing implications.
5. What is the therapeutic serum level for a patient taking Phenytoin (Dilantin)?
A. 10 to 20 mcg/mL
B. 5 to 10 mcg/mL
C. 20 to 30 mcg/mL
D. 0.5 to 1.5 mcg/mL
Answer: A
Rationale: The therapeutic range for Phenytoin is narrow, typically 10-20 mcg/mL. Levels above this range
lead to toxicity (ataxia, nystagmus). Recognizing this principle allows the nurse to prioritize care, anticipate
complications, and provide accurate patient education. Exam questions often test the ability to distinguish this
concept from closely related distractors, making a clear rationale essential for mastery.
6. Which side effect is commonly associated with the long-term use of Phenytoin?
A. Gingival hyperplasia
B. Urinary retention
C. Weight loss
D. Tachycardia
Answer: A
Rationale: Gingival hyperplasia (overgrowth of gum tissue) is a frequent side effect of phenytoin. Frequent
dental checkups are necessary. Recognizing this principle allows the nurse to prioritize care, anticipate
complications, and provide accurate patient education. Exam questions often test the ability to distinguish this
concept from closely related distractors, making a clear rationale essential for mastery.
Exam (Elaborations) • Actual Questions & Rationales Page 3
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
NURS 251 Module 3 Exam – Pharmacology (Portage)
2026 UPDATE
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
Exam (Elaborations) • Actual Questions & Rationales Page 1
,NURS 251 Module 3 Exam – Pharmacology (Portage) 2026 UP… 2026 Update • Verified Answers
Questions & Verified Answers
1. A patient is prescribed Bethanechol (Urecholine) for urinary retention. Which of the following
is a primary contraindication for this medication?
A. Glaucoma
B. Intestinal obstruction
C. Tachycardia
D. Hypothyroidism
Answer: B
Rationale: Bethanechol is a cholinergic agonist that increases peristalsis and bladder contraction. If an
obstruction is present, the increased pressure can lead to rupture. Recognizing this principle allows the nurse
to prioritize care, anticipate complications, and provide accurate patient education.
2. A patient is receiving Atropine preoperatively. The nurse explains that this medication is
used to:
A. Reduce anxiety
B. Decrease oral and respiratory secretions
C. Prevent postoperative nausea
D. Induce sedation
Answer: B
Rationale: Atropine is an anticholinergic drug used to decrease secretions to prevent aspiration during surgery
and to treat bradycardia. Applying this knowledge in clinical settings supports safe, evidence-based practice
and improves patient outcomes. This is an important clinical concept because selecting the correct answer (B)
requires understanding both the pathophysiology and the practical nursing implications.
3. Which of the following assessments is most critical for a patient receiving Morphine sulfate?
A. Respiratory rate
B. Temperature
C. Blood pressure
D. Bowel sounds
Answer: A
Rationale: Respiratory depression is the most serious adverse effect of opioids like morphine. It must be
monitored closely. Applying this knowledge in clinical settings supports safe, evidence-based practice and
improves patient outcomes. This is an important clinical concept because selecting the correct answer (A)
requires understanding both the pathophysiology and the practical nursing implications.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, NURS 251 Module 3 Exam – Pharmacology (Portage) 2026 UP… 2026 Update • Verified Answers
4. A patient with Parkinson’s disease is prescribed Levodopa-Carbidopa. What is the primary
purpose of adding Carbidopa?
A. To increase the metabolism of Levodopa
B. To prevent Levodopa from crossing the blood-brain barrier
C. To reduce the psychiatric side effects of Levodopa
D. To inhibit the breakdown of Levodopa in the periphery
Answer: D
Rationale: Carbidopa prevents the peripheral metabolism of levodopa, allowing more levodopa to reach the
brain to be converted to dopamine. Applying this knowledge in clinical settings supports safe, evidence-based
practice and improves patient outcomes. This is an important clinical concept because selecting the correct
answer (D) requires understanding both the pathophysiology and the practical nursing implications.
5. What is the therapeutic serum level for a patient taking Phenytoin (Dilantin)?
A. 10 to 20 mcg/mL
B. 5 to 10 mcg/mL
C. 20 to 30 mcg/mL
D. 0.5 to 1.5 mcg/mL
Answer: A
Rationale: The therapeutic range for Phenytoin is narrow, typically 10-20 mcg/mL. Levels above this range
lead to toxicity (ataxia, nystagmus). Recognizing this principle allows the nurse to prioritize care, anticipate
complications, and provide accurate patient education. Exam questions often test the ability to distinguish this
concept from closely related distractors, making a clear rationale essential for mastery.
6. Which side effect is commonly associated with the long-term use of Phenytoin?
A. Gingival hyperplasia
B. Urinary retention
C. Weight loss
D. Tachycardia
Answer: A
Rationale: Gingival hyperplasia (overgrowth of gum tissue) is a frequent side effect of phenytoin. Frequent
dental checkups are necessary. Recognizing this principle allows the nurse to prioritize care, anticipate
complications, and provide accurate patient education. Exam questions often test the ability to distinguish this
concept from closely related distractors, making a clear rationale essential for mastery.
Exam (Elaborations) • Actual Questions & Rationales Page 3
