Scorpion

1. See Also
   1. Neurotoxin
2. Mechanism
   1. Centruroides sculpturatus venom is a Neurotoxin
   2. Other Scorpions cause only local reactions
3. Symptoms
   1. Immediate burning pain at site of sting
   2. Local or regional hyperesthesia for varying period
4. Signs
   1. Local reaction (Scorpion other than C. sculpturatus)
      1. Erythema
      2. Edema
      3. Ecchymosis
   2. Tap test (Suggests C. sculpturatus sting)
      1. Administer sharp tap at wound site
      2. Positive
         1. Patient experiences significant pain
         2. Abruptly withdraws wound site
   3. Centruroides sculpturatus reaction
      1. Muscle spasm
      2. Excessive Salivation
      3. Fever
      4. Tachycardia
      5. Nystagmus
      6. Blurred vision
      7. Slurred speech
      8. Respiratory distress or Wheezing
      9. CNS hyperstimulation
      10. Seizures
5. Course of Centruroides sculpturatus
   1. Infants <1 years: Fatal reactions are not uncommon
   2. Child <5 years: Potentially life threatening reactions
   3. Adults: Variable reactions but rarely fatal
6. Management
   1. Immediate medical attention for children
   2. Observe closely
      1. ABC Management
         1. Respiratory depression
         2. Adequate ventilation
      2. CNS Hyperstimulation
      3. Seizures
   3. First aid measures
      1. Ice to wound site
      2. Elevation of affected part
      3. Apply tourniquet if sting on limb (controversial)
   4. Symptomatic therapy
      1. Antihistamines
      2. Corticosteroids
      3. Analgesics