🦂 Chapter 768 · Scorpion Stings

Nelson Textbook of Pediatrics 22nd Edition | Scorpion stings: Centruroides sculpturatus (bark scorpion) – Southwest US, northern Mexico. Neurotoxic venom → opsoclonus, nystagmus, hypersalivation, agitation, respiratory distress, autonomic storms. Treatment: Anascorp antivenom (equine Fab2) for Grade III-IV envenomation (neurotoxicity). Mild local pain: oral analgesics, ice. Children are more vulnerable to severe neurotoxicity.

🌐 paeds.online — Pediatric Learning Platform

📋 30 Clinical Scenarios — Scorpion Stings

📇 High‑Yield Review Cards

🩺 Clinical Recognition: Scorpion Envenomation

Select a scorpion sting presentation to review grading, antivenom, and management (Nelson Ch 768).

📋 Stepwise Management of Scorpion Stings

🔑 Key Principles — Chapter 768
• Centruroides sculpturatus (bark scorpion): Only medically significant scorpion in US. Neurotoxic venom → sodium channel dysfunction.
• Grading: Grade I (local pain/paresthesia), Grade II (remote pain/paresthesia), Grade III (cranial nerve dysfunction – opsoclonus, nystagmus, hypersalivation, dysphagia), Grade IV (somatic motor dysfunction – agitation, myoclonus, respiratory distress).
• Treatment: Grade I-II → supportive care, oral analgesics. Grade III-IV → Anascorp antivenom (equine Fab2) 3-5 vials IV. Rapid improvement within 1-4 hours.
• Phentolamine/atropine/barbiturates not effective. Benzodiazepines for agitation (adjunct).

    ⚡ Reflex Prompts — Scorpion Sting Emergencies

    📖 Summary: Scorpion Stings (Nelson 768)