Which characteristic is typically seen in a stage II pressure ulcer?

A stage II pressure ulcer is defined by partial-thickness loss of skin. This can manifest as an open ulcer, often characterized by a blister, which may be intact or ruptured. The key aspect of a stage II ulcer is that it does not extend into deeper tissues, such as muscle or bone, which differentiates it from more severe stages of pressure ulcers.

This definition aligns closely with the characteristics noted in the correct choice, emphasizing the significance of partial-thickness skin loss. The presence of a blister is a typical manifestation of this stage and highlights the impact of pressure on the skin. Therefore, identifying a stage II pressure ulcer involves recognizing these visible signs that indicate damage to the outer layers of skin while sparing deeper structures.