Which burn is the least serious and affects only the outer layer of skin?

Which burn is the least serious and affects only the outer layer of skin?

• A. 3rd degree
• B. 1st degree
• C. 4th degree
• D. 2nd degree

Answer: (B)

The main idea is how deep a burn goes into the skin. Burns that affect only the outermost skin layer are the mildest. A first-degree burn involves just the epidermis, causing redness, mild pain, and usually little or no blistering; it heals on its own in a few days without scarring. Burns that extend into the dermis (second-degree) or deeper (third-degree and beyond) are more serious, with more pain, swelling, blistering, and longer healing times or the need for medical treatment. So the description of being the least serious and affecting only the outer layer matches a first-degree burn.

The main idea is how deep a burn goes into the skin. Burns that affect only the outermost skin layer are the mildest. A first-degree burn involves just the epidermis, causing redness, mild pain, and usually little or no blistering; it heals on its own in a few days without scarring. Burns that extend into the dermis (second-degree) or deeper (third-degree and beyond) are more serious, with more pain, swelling, blistering, and longer healing times or the need for medical treatment. So the description of being the least serious and affecting only the outer layer matches a first-degree burn.