Final answer:
The nurse should document the deep irregularly shaped area of skin loss extending into the dermis on the RLE as an ulcer.
Step-by-step explanation:
The nurse should document the deep irregularly shaped area of skin loss extending into the dermis on the RLE as an ulcer. Ulcers are characterized by the loss of skin or mucous membrane, typically resulting from inflammation, infection, or injury. In this case, the deep irregular shape and extent of skin loss indicate an ulcer.