Which description best matches an opioid overdose?

Which description best matches an opioid overdose?

• A. Decreased LOC; Respiratory depression; Pinpoint pupils
• B. Increased LOC; Hyperventilation; Dilated pupils
• C. Hypertension; Tachycardia; Agitation
• D. Diaphoresis only

Answer: (A)

Opioid overdose most often shows a combination of CNS depression and slowed breathing, with pupils that are very small. The best description matches decreased level of consciousness, respiratory depression, and pinpoint pupils because these signs come from the way opioids affect the brain and the brainstem’s control of breathing, plus the characteristic pupil constriction (miosis) caused by mu-receptor activation. The other patterns don’t fit: being awake with hyperventilation and dilated pupils points away from opioids and toward stimulants or anxiety; high blood pressure with fast heart rate and agitation suggests a sympathetic overdose; sweating alone isn’t enough to indicate opioid toxicity.

Opioid overdose most often shows a combination of CNS depression and slowed breathing, with pupils that are very small. The best description matches decreased level of consciousness, respiratory depression, and pinpoint pupils because these signs come from the way opioids affect the brain and the brainstem’s control of breathing, plus the characteristic pupil constriction (miosis) caused by mu-receptor activation. The other patterns don’t fit: being awake with hyperventilation and dilated pupils points away from opioids and toward stimulants or anxiety; high blood pressure with fast heart rate and agitation suggests a sympathetic overdose; sweating alone isn’t enough to indicate opioid toxicity.