What is the maximum temperature for heat application in jellyfish sting treatment?

What is the maximum temperature for heat application in jellyfish sting treatment?

• A. Not to exceed 105 °F / 40 °C
• B. Not to exceed 110 °F / 43 °C
• C. Not to exceed 120 °F / 49 °C
• D. Heat is not recommended

Answer: (B)

Heat helps inactivate jellyfish venom because the toxins are heat-labile proteins; warming the area speeds denaturation and reduces pain, so heat is preferred over cold for this injury. The safe upper limit used in many EMS protocols is about 43°C (110°F) to maximize venom inactivation while minimizing the risk of burns. Temperatures higher than this raise the chance of thermal injury, so 43°C is the best-supported maximum.

Heat helps inactivate jellyfish venom because the toxins are heat-labile proteins; warming the area speeds denaturation and reduces pain, so heat is preferred over cold for this injury. The safe upper limit used in many EMS protocols is about 43°C (110°F) to maximize venom inactivation while minimizing the risk of burns. Temperatures higher than this raise the chance of thermal injury, so 43°C is the best-supported maximum.