Which description correctly matches burn degrees?

Which description correctly matches burn degrees?

• A. 1st degree affects only the epidermis; 2nd degree affects the dermis; 3rd degree is full thickness; 4th degree extends to muscle or bone
• B. 1st degree is full thickness; 2nd degree is superficial; 3rd degree deeper; 4th degree involves bone
• C. 1st degree damages bone; 2nd damages nerves; 3rd damages skin; 4th damages muscle
• D. 1st degree involves muscle; 2nd involves tendon; 3rd involves bone; 4th involves brain

Answer: (A)

Burn depth measures how deeply skin tissue is damaged. First-degree burns affect only the outermost layer, the epidermis. Second-degree burns involve the dermis and often form blisters. Third-degree burns are full thickness, involving both the epidermis and dermis and sometimes deeper tissues. Fourth-degree burns go even deeper, extending to muscle or bone. The description that maps first degree to epidermis, second to dermis, third to full thickness, and fourth to muscle or bone matches this progression, making it the best choice. The other descriptions mix up which tissues are involved at each depth, so they don’t fit the standard burn-depth pattern.

Burn depth measures how deeply skin tissue is damaged. First-degree burns affect only the outermost layer, the epidermis. Second-degree burns involve the dermis and often form blisters. Third-degree burns are full thickness, involving both the epidermis and dermis and sometimes deeper tissues. Fourth-degree burns go even deeper, extending to muscle or bone. The description that maps first degree to epidermis, second to dermis, third to full thickness, and fourth to muscle or bone matches this progression, making it the best choice. The other descriptions mix up which tissues are involved at each depth, so they don’t fit the standard burn-depth pattern.