Final answer:
Blanchable erythema is an early indication of pressure that resolves without tissue loss if the pressure is removed. Nonblanchable erythema is a sign of a stage I pressure ulcer.
Step-by-step explanation:
The statement is true. Blanchable erythema refers to redness of the skin that fades or blanches when pressed and is an early indication of pressure on the skin. If the pressure is removed, the redness resolves without tissue loss. Pallor or mottling, which refers to the skin becoming pale or showing patchy discoloration, is a sign of persistent hypoxia (low oxygen levels in the tissues). Dark red or purple discoloration may indicate potential damage to blood vessels and tissue.
Nonblanchable erythema, on the other hand, is an indicator of a stage I pressure ulcer. It refers to redness of the skin that does not fade or blanch when pressed. This is a more advanced stage of pressure-related skin damage.