Which of the following is NOT a wound type listed in the material?

• A. Contusion
• B. Blister
• C. Avulsion
• D. Abrasion

Answer: (B)

Wound classification in wilderness first aid groups injuries by how the skin is damaged and whether the wound is open or closed. A contusion is a closed injury (a bruise) where skin isn’t broken. An abrasion is a superficial open wound created by rubbing or scraping away the surface. An avulsion is a severe open injury in which tissue is torn away. A blister, however, isn’t listed as a wound type in that material because it’s typically described as a friction/pressure skin lesion rather than a wound category like those three. So the blister stands out as the item not listed among wound types, which is why it’s the correct choice for “NOT listed.”