Examkin

Soru

Zorluk: OrtaSubstance-Related and Addictive Disorders

Match each patient's clinical presentation with the most likely corresponding substance intoxication or withdrawal syndrome.

  • Phencyclidine (PCP) IntoxicationPatient displays extreme agitation, combative behavior, decreased pain perception, and rotatory nystagmus.
  • Opioid WithdrawalPatient exhibits severe myalgias, frequent yawning, lacrimation, rhinorrhea, and piloerection.
  • Cocaine IntoxicationPatient presents with acute substernal chest pressure, severe diaphoresis, tachycardia, and mucosal erythema of the nasal septum.
  • Benzodiazepine WithdrawalPatient develops sudden-onset generalized tonic-clonic seizures, severe hand tremors, and autonomic hyperactivity three days after losing access to their prescription medications.

Cevap

Phencyclidine (PCP) Intoxication matches with extreme agitation and rotatory nystagmus; Opioid Withdrawal matches with yawning, lacrimation, and piloerection; Cocaine Intoxication matches with acute chest pressure and nasal erythema; Benzodiazepine Withdrawal matches with delayed seizures and tremors after losing prescription access.
Each substance produces a highly specific toxidrome or withdrawal pattern that allows for clinical diagnosis: PCP uniquely causes nystagmus and analgesia, cocaine causes profound sympathetic overdrive with localized nasal findings, opioid withdrawal mimics a severe viral illness with pathognomonic piloerection, and benzodiazepine withdrawal presents as life-threatening delayed CNS excitation.

Adım Adım Çözüm

1
Analyze the presentation with myalgias, yawning, lacrimation, and piloerection.
Identify this as an influenza-like syndrome characteristic of Opioid Withdrawal.
These specific signs (especially yawning and piloerection) are hallmark physiological responses to the absence of exogenous opioids.
2
Analyze the presentation with chest pressure, tachycardia, diaphoresis, and nasal erythema.
Identify this as Cocaine Intoxication.
Cocaine acts as a potent sympathomimetic causing coronary vasospasm and myocardial ischemia, and its insufflation damages nasal mucosa.
3
Analyze the presentation with delayed seizures, tremors, and autonomic hyperactivity after discontinuing medications.
Identify this as Benzodiazepine Withdrawal.
Stopping GABA-A modulators abruptly removes inhibitory tone, leading to severe excitatory rebound including delirium and seizures.
4
Analyze the presentation with extreme agitation, decreased pain perception, and rotatory nystagmus.
Identify this as Phencyclidine (PCP) Intoxication.
Rotatory nystagmus combined with violent behavior and analgesia is the classic triad for PCP toxicity.

Anahtar Kavram

Clinical recognition of distinctive substance toxidromes and withdrawal syndromes
Bu soruyu puanla

Konular

Substance-Related and Addictive Disorders

Bu konudan daha fazla soru