NURS 251 Module 2 Pharmacology Exam Analgesics Anti-Inflammatories
Antimicrobials CNS Actual Exam 2026/2027 – Complete Test Bank with Detailed
Rationales | 100% Verified | Pass Guaranteed – A+ Graded
Total Questions: 30 | Cognitive Levels: 30% Recall • 50% Application • 20% Analysis |
Core Concepts: Pain Management • NSAIDs/Antipyretics • Antimicrobial Therapy • CNS
Drugs • Medication Safety & Calculations
SECTION A: Analgesics & Pain Management (Q1–Q6)
Q1: A patient with severe postoperative pain is prescribed morphine, a pure opioid
agonist. The nurse explains that morphine relieves pain primarily by:
A. Inhibiting cyclooxygenase at the peripheral injury site
B. Binding mu-opioid receptors in the CNS, altering pain perception and response
[CORRECT]
C. Blocking sodium channels in peripheral nerves
D. Enhancing serotonin reuptake in the synapse
Correct Answer: B
Rationale: Opioid agonists act centrally at mu (and kappa/delta) receptors in the brain
and spinal cord to reduce pain transmission and perception. COX inhibition describes
NSAIDs, sodium channel blockade describes local anesthetics, and reuptake
enhancement describes antidepressants—each the wrong class mechanism.
Q2: A patient receiving morphine via PCA pump becomes difficult to arouse with a
respiratory rate of 8. The nurse should anticipate administering which medication?
A. Naloxone [CORRECT]
B. Flumazenil
C. Acetylcysteine
D. Vitamin K
Correct Answer: A
Rationale: Naloxone is the specific opioid antagonist that displaces opioids from mu
receptors, reversing sedation and respiratory depression. Flumazenil reverses
, benzodiazepines, acetylcysteine treats acetaminophen toxicity, and vitamin K reverses
warfarin—each the wrong antidote for opioid excess.
Q3: When teaching a patient about acetaminophen, which instruction is ESSENTIAL to
prevent hepatotoxicity?
A. "Take it with a full glass of milk to protect the stomach."
B. "Do not exceed the maximum daily dose (typically 3,000–4,000 mg from ALL sources,
including combination products) and avoid alcohol." [CORRECT]
C. "Double the dose if pain is severe."
D. "It is safe to combine with any other cold medication without checking labels."
Correct Answer: B
Rationale: Acetaminophen toxicity is dose-dependent and hidden in many combination
cold products; exceeding maximum daily intake or combining with alcohol risks severe
liver failure. It lacks significant GI ulcer risk (no milk needed), never requires
unsupervised dose doubling, and combination products demand label review.
Q4: A patient with chronic cancer pain is on long-acting oxycodone (OxyContin). Which
teaching point is MOST important?
A. "Crush the tablet if you need faster relief."
B. "Swallow the extended-release tablet whole—crushing, chewing, or splitting it can
cause a fatal dose to be released at once." [CORRECT]
C. "Stop taking it suddenly once pain improves."
D. "Take it only when the pain becomes unbearable."
Correct Answer: B
Rationale: Crushing, chewing, or splitting extended-release opioids destroys the release
mechanism, dumping the full dose immediately and risking fatal respiratory depression.
Abrupt discontinuation causes withdrawal in a dependent patient, and PRN use of
long-acting agents defeats their purpose and destabilizes pain control.
Q5: A nurse notes a patient on opioids has not had a bowel movement in 3 days and
reports nausea and abdominal cramping. The nurse recognizes these as:
A. Expected adverse effects of opioid therapy requiring proactive bowel management
[CORRECT]
B. Signs of opioid allergy requiring naloxone
C. Evidence that the opioid dose is too low
Antimicrobials CNS Actual Exam 2026/2027 – Complete Test Bank with Detailed
Rationales | 100% Verified | Pass Guaranteed – A+ Graded
Total Questions: 30 | Cognitive Levels: 30% Recall • 50% Application • 20% Analysis |
Core Concepts: Pain Management • NSAIDs/Antipyretics • Antimicrobial Therapy • CNS
Drugs • Medication Safety & Calculations
SECTION A: Analgesics & Pain Management (Q1–Q6)
Q1: A patient with severe postoperative pain is prescribed morphine, a pure opioid
agonist. The nurse explains that morphine relieves pain primarily by:
A. Inhibiting cyclooxygenase at the peripheral injury site
B. Binding mu-opioid receptors in the CNS, altering pain perception and response
[CORRECT]
C. Blocking sodium channels in peripheral nerves
D. Enhancing serotonin reuptake in the synapse
Correct Answer: B
Rationale: Opioid agonists act centrally at mu (and kappa/delta) receptors in the brain
and spinal cord to reduce pain transmission and perception. COX inhibition describes
NSAIDs, sodium channel blockade describes local anesthetics, and reuptake
enhancement describes antidepressants—each the wrong class mechanism.
Q2: A patient receiving morphine via PCA pump becomes difficult to arouse with a
respiratory rate of 8. The nurse should anticipate administering which medication?
A. Naloxone [CORRECT]
B. Flumazenil
C. Acetylcysteine
D. Vitamin K
Correct Answer: A
Rationale: Naloxone is the specific opioid antagonist that displaces opioids from mu
receptors, reversing sedation and respiratory depression. Flumazenil reverses
, benzodiazepines, acetylcysteine treats acetaminophen toxicity, and vitamin K reverses
warfarin—each the wrong antidote for opioid excess.
Q3: When teaching a patient about acetaminophen, which instruction is ESSENTIAL to
prevent hepatotoxicity?
A. "Take it with a full glass of milk to protect the stomach."
B. "Do not exceed the maximum daily dose (typically 3,000–4,000 mg from ALL sources,
including combination products) and avoid alcohol." [CORRECT]
C. "Double the dose if pain is severe."
D. "It is safe to combine with any other cold medication without checking labels."
Correct Answer: B
Rationale: Acetaminophen toxicity is dose-dependent and hidden in many combination
cold products; exceeding maximum daily intake or combining with alcohol risks severe
liver failure. It lacks significant GI ulcer risk (no milk needed), never requires
unsupervised dose doubling, and combination products demand label review.
Q4: A patient with chronic cancer pain is on long-acting oxycodone (OxyContin). Which
teaching point is MOST important?
A. "Crush the tablet if you need faster relief."
B. "Swallow the extended-release tablet whole—crushing, chewing, or splitting it can
cause a fatal dose to be released at once." [CORRECT]
C. "Stop taking it suddenly once pain improves."
D. "Take it only when the pain becomes unbearable."
Correct Answer: B
Rationale: Crushing, chewing, or splitting extended-release opioids destroys the release
mechanism, dumping the full dose immediately and risking fatal respiratory depression.
Abrupt discontinuation causes withdrawal in a dependent patient, and PRN use of
long-acting agents defeats their purpose and destabilizes pain control.
Q5: A nurse notes a patient on opioids has not had a bowel movement in 3 days and
reports nausea and abdominal cramping. The nurse recognizes these as:
A. Expected adverse effects of opioid therapy requiring proactive bowel management
[CORRECT]
B. Signs of opioid allergy requiring naloxone
C. Evidence that the opioid dose is too low
