Which chemical burn often has a delayed burning sensation and may burn deeper than acids?

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Prepare for the EMT Medical Conditions Exam with multiple choice questions and explanations. Study effectively and improve your chances of success with practice exams and comprehensive materials!

Multiple Choice

Which chemical burn often has a delayed burning sensation and may burn deeper than acids?

Explanation:
Alkalis (strong bases) are the type of chemical burn that often has a delayed burning sensation and can burn deeper than acids. This happens because alkaline substances cause liquefactive necrosis: they saponify fats and denature proteins, turning tissues into a soluble, penetrating mixture. Without a protective eschar to stop it, the chemical continues to diffuse into deeper layers, leading to more extensive damage and a later-onset pain. In contrast, acids tend to cause coagulative necrosis, forming an eschar that can limit how deep the burn goes, even though the surface may hurt initially. So the description fits alkalis.

Alkalis (strong bases) are the type of chemical burn that often has a delayed burning sensation and can burn deeper than acids. This happens because alkaline substances cause liquefactive necrosis: they saponify fats and denature proteins, turning tissues into a soluble, penetrating mixture. Without a protective eschar to stop it, the chemical continues to diffuse into deeper layers, leading to more extensive damage and a later-onset pain. In contrast, acids tend to cause coagulative necrosis, forming an eschar that can limit how deep the burn goes, even though the surface may hurt initially. So the description fits alkalis.

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