MN 566 - EXAM 4 LATEST 2026/2027 | MULTIPLE-CHOICE |
40 VERIFIED Q&A | DETAILED RATIONALES | NGN-
ALIGNED | PASS GUARANTEED – A+ GRADED
SECTION 1: PAIN MANAGEMENT PHARMACOLOGY - Questions 1-6
Q1: Opioids - Mechanism
Opioids work by:
A. Blocking sodium channels
B. Binding to mu-opioid receptors in the CNS
C. Inhibiting COX enzymes
D. Blocking calcium channels
Correct Answer: B
Rationale: Opioids bind to mu-opioid receptors (and kappa, delta) in the central nervous system,
inhibiting pain transmission and modulating the perception of pain. They are the most potent
analgesics available. [100% CORRECT]
Q2: Opioids - Side Effects
A common side effect of opioids is:
A. Diarrhea
B. Constipation
C. Weight gain
D. Hypotension
Correct Answer: B
Rationale: Constipation is the most common side effect of opioids, occurring in most patients. A
bowel regimen (stool softener, stimulant laxative) should be initiated when starting opioid therapy.
[100% CORRECT]
Q3: Opioids - Respiratory Depression
The most serious adverse effect of opioids is:
A. Constipation
B. Nausea
C. Respiratory depression
D. Sedation
Correct Answer: C
Rationale: Respiratory depression is the most serious and potentially fatal adverse effect of opioids.
It is caused by decreased sensitivity of the respiratory center to CO2. Risk is increased with higher
doses, concurrent CNS depressants, and in opioid-naïve patients. [100% CORRECT]
, 2
Q4: Opioids - Naloxone
Naloxone is used to:
A. Potentiate opioid effects
B. Reverse opioid overdose
C. Treat opioid withdrawal
D. Prevent opioid dependence
Correct Answer: B
Rationale: Naloxone is a pure opioid antagonist used to reverse opioid overdose by displacing
opioids from mu-opioid receptors, rapidly reversing respiratory depression and sedation. [100%
CORRECT]
Q5: NSAIDs - Mechanism
NSAIDs work by:
A. Binding to opioid receptors
B. Inhibiting cyclooxygenase (COX) enzymes
C. Blocking calcium channels
D. Inhibiting sodium channels
Correct Answer: B
Rationale: NSAIDs inhibit COX-1 and COX-2 enzymes, reducing prostaglandin synthesis. This
produces analgesic, anti-inflammatory, and antipyretic effects. [100% CORRECT]
Q6: NSAIDs - Side Effects
A common side effect of NSAIDs is:
A. Constipation
B. Respiratory depression
C. GI bleeding and nephrotoxicity
D. Weight gain
Correct Answer: C
Rationale: NSAIDs are associated with GI bleeding (gastric ulcers), nephrotoxicity (renal
impairment), and increased cardiovascular risk. COX-2 inhibitors have lower GI risk but higher
cardiovascular risk. [100% CORRECT]
SECTION 2: IMMUNOMODULATORS & BIOLOGICS - Questions 7-12
Q7: Corticosteroids - Mechanism
Corticosteroids (prednisone) work by:
A. Blocking histamine receptors
B. Suppressing inflammation through inhibition of phospholipase A2 and gene transcription
C. Inhibiting COX enzymes
D. Blocking leukotriene receptors