Final answer:
The correct name for the described wound is Stage II pressure ulcer, which is characterized by a shallow open ulcer with partial thickness loss of the dermis.
Step-by-step explanation:
The correct name for the described wound is Stage II pressure ulcer. A Stage II pressure ulcer is characterized by a shallow open ulcer with partial thickness loss of the dermis. The wound bed appears red-pink and may contain a blister or serum-filled cavity. This stage indicates more severe tissue damage compared to Stage I, but does not involve full-thickness loss of the skin or underlying structures.