Final answer:
A wound extending through the epidermis into the dermis should be classified as a partial-thickness wound, which is similar to a second-degree burn. Option 1.
Step-by-step explanation:
If a patient with quadriplegia presents with an ischial wound that extends through the epidermis into the dermis, the nurse should classify it as a partial-thickness wound option 1. This classification is because the wound affects both the epidermis and a portion of the dermis, similar to what is observed with second-degree burns, resulting in damage that is not limited to the outermost layer of skin. This type of wound requires appropriate wound care to prevent infection and promote healing.