An unresponsive 10-year-old female collapsed after being found at the playground. Bystanders report confusion before collapse. Skin is pale and moist; she localizes to painful stimuli. What is the most likely cause?

• A. Absence seizure
• B. Vasovagal syncope
• C. Opioid overdose
• D. Hypoglycemia

Answer: (D)

When brain tissue is deprived of glucose, mental status deteriorates and autonomic signs like pale, sweaty skin appear. This child’s confusion before collapse, pallor, diaphoresis, and a still-reactive patient who localizes to painful stimuli fit hypoglycemia causing neuroglycopenia. Absence seizures typically cause brief staring spells with rapid recovery and no preceding confusion; vasovagal syncope has a clearer prodrome and a quicker, uncomplicated return to baseline; opioid overdose would usually show respiratory depression and pinpoint pupils, which aren’t described here. So the presentation most closely aligns with hypoglycemia, a condition that impairs brain function and can lead to unresponsiveness if not treated promptly. If this were suspected in the field, check a finger-stick glucose and treat immediately with glucose (IV dextrose or glucagon if no IV access) while ensuring airway and rapid transport.