Suspected Deep Tissue Injury  Blister or discolored skin, boggy.

Purple or maroon localized area of discolored intact skin or blood-filled blister due to damage or 
underlying soft tissue from pressure and/or sheer. The area may be preceded by tissue that is 
painful, firm, mushy, darker or cooler as compared to adjacent tissue.
Deep tissue injury may be difficult to detect in individuals with dark skin tones. Evolution 
may include a thin blister over a dark wound bed. The wound may further evolve and become
covered by thin eschar. Evolution may be rapid, exposing additional layers of tissue even with 
optimal treatment.