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ScorpionAka: Centruroides sculpturatus

See Also
1. Neurotoxin
Mechanism
1. Centruroides Sculpturatus venom is a Neurotoxin
2. Other scorpions cause only local reactions
Symptoms
1. Immediate burning pain at site of sting
2. Local or regional hyperesthesia for varying period
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
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
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

Scorpions (C0036451)
Definition (MSH)	Arthropods of the order Scorpiones, of which 1500 to 2000 species have been described. The most common live in tropical or subtropical areas. They are nocturnal and feed principally on insects and other arthropods. They are large arachnids but do not attack man spontaneously. They have a venomous sting. Their medical significance varies considerably and is dependent on their habits and venom potency rather than on their size. At most, the sting is equivalent to that of a hornet but certain species possess a highly toxic venom potentially fatal to humans. (From Dorland, 27th ed; Smith, Insects and Other Arthropods of Medical Importance, 1973, p417; Barnes, Invertebrate Zoology, 5th ed, p503)
Concepts	Invertebrate (T009)
English	Order scorpionida, Scorpion, Scorpiones, Scorpions, Subclass: Scorpiones, True scorpion
Spanish	escorpiÃ³n, escorpiÃ³n verdadero, escorpion, escorpion verdadero, orden scorpionida, subclase: Scorpiones
Credits	Derived from the NIH UMLS (Unified Medical Language System)

Centruroides sculpturatus (C0323793)
Concepts	Invertebrate (T009)
English	Centruroides sculptuatus, Centruroides sculpturatus
Credits	Derived from the NIH UMLS (Unified Medical Language System)