The nurse questions the wound care specialist about the meaning of an un-stageable pressure injury. Which statement about this condition is correct?

The slough or eschar that covers the wound hides a stage 3 or 4 pressure injury.

The wound presents with various areas that are between stages of the healing process.

The pressure injury is so early in the tissue destruction process that staging cannot be determined.

There is persistent non-blanchable purple discoloration that makes it difficult to determine the correct stage.