Question:
Patient had sunburn and now takes a bath with 40-degree water and feels pain.
Patient had sunburn and now takes a bath with 40-degree water and feels pain.
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Allodynia occurs when typically harmless stimuli, such as warm water after a sunburn, trigger pain due to sensitized thermal receptors.
Updated On: Mar 24, 2025
- Thermal receptor: hyperalgesia
- Innocuous thermal receptor: allodynia
- Thermal receptor: allodynia
- Innocuous thermal receptor: hyperalgesia
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The Correct Option is B
Solution and Explanation
The patient is experiencing pain due to a previously non-painful stimulus (the 40-degree water) after sunburn. This is known as allodynia, where innocuous stimuli are perceived as painful due to sensitization of the nociceptors after sunburn.
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