What are the signs and symptoms of scorpion envenomation?

Updated: Nov 09, 2018
  • Author: David Cheng, MD; Chief Editor: Joe Alcock, MD, MS  more...
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Answer

Clinical manifestations range from minor local tenderness to multisystem failure followed by death. [19]

Local tissue effects vary among species. Minimal local tissue effects are present with Centruroides envenomation. Significant local tissue reaction rules out C exilicauda envenomation. Tapping over the injury site (ie, tap test) may cause severe pain after a sting by C exilicauda.

Tachycardia and other dysrhythmias are caused by autonomic effects primarily, although direct myocardial toxicity with arrhythmogenic effects has been described.

Hypertension or hypotension may be present.

The patient may have hyperthermia.

Respiratory arrest and loss of protective airway reflexes are common causes of mortality. Pulmonary edema has been described and may be secondary to cardiogenic causes and to increased capillary permeability.


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