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Zorluk: OrtaSubstance-Related and Addictive Disorders

Correlate each distinct clinical presentation observed in the acute care setting with the most accurate corresponding substance-related syndrome.

  • Prominent rhinorrhea, frequent yawning, diffuse piloerection, and severe myalgias in an ambulatory patient.Opioid withdrawal syndrome
  • Pronounced diaphoresis, pupillary dilation (mydriasis), resting tachycardia, and rapid, pressured speech in an agitated individual.Stimulant (e.g., cocaine or amphetamine) intoxication
  • Rotary nystagmus, significant combativeness, and a striking lack of response to painful procedures in a trauma setting.Phencyclidine (PCP) intoxication
  • Development of a coarse resting hand tremor, diaphoresis, and new-onset hypertension in a hospitalized patient on post-operative day three.Alcohol withdrawal syndrome

Cevap

The clinical presentations map to the following syndromes: rhinorrhea, yawning, and piloerection indicate opioid withdrawal; diaphoresis, mydriasis, and pressured speech indicate stimulant intoxication; rotary nystagmus and analgesia indicate PCP intoxication; and post-operative tremor with hypertension indicates alcohol withdrawal.
Each syndrome is identifiable by unique hallmark features. Opioid withdrawal is defined by flu-like symptoms, yawning, and piloerection. Stimulant intoxication presents with generalized sympathetic overactivation, prominently featuring mydriasis and psychomotor agitation. PCP intoxication is virtually unique in causing rotary nystagmus coupled with extreme analgesia. Finally, unexpected alcohol withdrawal in hospitalized patients classically emerges 2 to 3 days after admission with a coarse tremor and autonomic instability.

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1
Analyze the first presentation for highly specific physical exam findings.
Identified piloerection (goosebumps) and yawning, which strongly point to opioid withdrawal.
These flu-like symptoms are the hallmark of the sympathetic rebound seen when opioids are discontinued.
2
Evaluate the second presentation focusing on pupillary and behavioral changes.
Mydriasis combined with pressured speech and tachycardia aligns with stimulant intoxication.
Cocaine and amphetamines block reuptake or stimulate release of catecholamines, causing pronounced sympathetic activation.
3
Examine the third presentation for neurological and sensory abnormalities.
Rotary nystagmus and profound analgesia point definitively to PCP intoxication.
PCP is an NMDA receptor antagonist that causes a unique dissociative state with characteristic multidirectional nystagmus.
4
Review the fourth presentation regarding the clinical timeline and symptoms.
A coarse tremor and autonomic instability on post-operative day three suggests alcohol withdrawal.
Hospital admission often forces abrupt alcohol cessation, leading to withdrawal syndromes classically emerging 48 to 72 hours later.

Anahtar Kavram

Clinical diagnosis of substance-induced toxidromes and withdrawal syndromes
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