What is a key characteristic of a stage II pressure ulcer?

A key characteristic of a stage II pressure ulcer is indeed partial-thickness loss of skin, which may present as a blister or a shallow ulcer. This stage indicates that the skin is compromised but has not progressed to full-thickness loss. The ulcer may involve the epidermis and part of the dermis, resulting in a visible open sore or a blister that is not filled with necrotic tissue. Recognizing this characteristic is essential for proper staging and appropriate treatment, as stage II ulcers require different management than deeper wounds.

In the context of the options provided, the other choices describe characteristics of other stages of pressure ulcers or conditions that do not fit the definition of a stage II ulcer. Full-thickness loss of skin, for example, is indicative of a more severe stage. The presence of necrotic tissue is associated with deeper tissue damage, while the absence of skin integrity suggests no injury has occurred at all, which does not align with the presence of a stage II pressure ulcer. Understanding these distinctions is crucial for effective assessment and intervention in clinical practice.