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Zorluk: OrtaSubstance-Related and Addictive Disorders

A busy metropolitan emergency department evaluates four patients presenting with varying signs of acute substance intoxication or withdrawal. Match each patient's clinical presentation with the most likely corresponding toxidrome or substance-related state.

  • Patient A: A 22-year-old presenting with a respiratory rate of 6/min, marked miosis, and absent bowel sounds.Opioid intoxication
  • Patient B: A 35-year-old brought in by police, demonstrating prominent horizontal and vertical nystagmus, aggressive behavior, and ataxia.Phencyclidine (PCP) intoxication
  • Patient C: A 42-year-old experiencing severe agitation, diaphoresis, tachycardia, mydriasis, and acute chest pain.Cocaine intoxication
  • Patient D: A 50-year-old developing profound confusion, visual hallucinations, resting tremor, and autonomic hyperactivity on hospital day 3 following an elective surgery.Alcohol withdrawal (Delirium tremens)

Cevap

Patient A matches Opioid intoxication; Patient B matches Phencyclidine (PCP) intoxication; Patient C matches Cocaine intoxication; Patient D matches Alcohol withdrawal (Delirium tremens).
Each patient's clinical vignette uniquely aligns with a specific substance toxidrome or withdrawal syndrome. Opioid overdose causes respiratory depression and miosis. PCP toxicity features aggressive behavior and prominent nystagmus. Cocaine causes profound sympathetic stimulation and coronary vasospasm. Delirium tremens occurs several days into abstinence and features hallucinations and autonomic instability.

Adım Adım Çözüm

1
Analyze the clinical presentation of Patient A.
Identified marked respiratory depression and miosis.
These findings represent the classic triad of opioid toxicity.
2
Analyze the clinical presentation of Patient B.
Identified multidirectional nystagmus and aggressive behavior.
Rotary or multidirectional nystagmus combined with aggression is the hallmark presentation of PCP intoxication.
3
Analyze the clinical presentation of Patient C.
Identified a sympathomimetic toxidrome with chest pain.
Cocaine blocks catecholamine reuptake, causing sympathetic hyperactivity and potentially triggering coronary vasospasm.
4
Analyze the clinical presentation of Patient D.
Identified late-onset delirium, hallucinations, and autonomic hyperactivity after hospital admission.
The timeline (day 3) and severe autonomic symptoms strongly indicate delirium tremens due to abrupt cessation of alcohol upon admission.

Anahtar Kavram

Recognition of specific toxidromes and withdrawal syndromes based on unique physical examination findings and clinical timelines.
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Konular

Substance-Related and Addictive Disorders

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