Which clinical presentation is MOST consistent with cocaine ingestion in a child?

Which clinical presentation is MOST consistent with cocaine ingestion in a child?

• A. Hypertension, tachycardia, diaphoresis, and mydriasis
• B. Hypotension, bradycardia, dry skin
• C. Hypoxia with cyanosis
• D. Hypoglycemia and lethargy

Answer: (A)

Cocaine acts as a powerful stimulant that triggers excess sympathetic nervous system activity. In a child, this produces a classic sympathomimetic pattern: hypertension, tachycardia, diaphoresis, and mydriasis. The high blood pressure and rapid heart rate come from vasoconstriction and increased cardiac output driven by surge of norepinephrine and dopamine. Sweating occurs from sympathetic activation of sweat glands, and the dilated pupils reflect sympathetic stimulation of the radial iris muscles. This combination is the most characteristic sign of cocaine ingestion. Signs like hypotension with bradycardia would suggest a different toxidrome or late-stage effects; dry skin points more toward anticholinergic effects or dehydration; hypoxia with cyanosis implies significant respiratory or oxygenation failure; hypoglycemia with lethargy points to metabolic or other toxic processes. So the presented combination aligns best with cocaine exposure. If suspected, ensure airway and breathing support, and consider benzodiazepines for agitation or sympathetic overactivity, while being cautious with beta-blockers due to potential unopposed alpha effects.

Cocaine acts as a powerful stimulant that triggers excess sympathetic nervous system activity. In a child, this produces a classic sympathomimetic pattern: hypertension, tachycardia, diaphoresis, and mydriasis. The high blood pressure and rapid heart rate come from vasoconstriction and increased cardiac output driven by surge of norepinephrine and dopamine. Sweating occurs from sympathetic activation of sweat glands, and the dilated pupils reflect sympathetic stimulation of the radial iris muscles. This combination is the most characteristic sign of cocaine ingestion.

Signs like hypotension with bradycardia would suggest a different toxidrome or late-stage effects; dry skin points more toward anticholinergic effects or dehydration; hypoxia with cyanosis implies significant respiratory or oxygenation failure; hypoglycemia with lethargy points to metabolic or other toxic processes. So the presented combination aligns best with cocaine exposure. If suspected, ensure airway and breathing support, and consider benzodiazepines for agitation or sympathetic overactivity, while being cautious with beta-blockers due to potential unopposed alpha effects.