题目8单选题
What is the local manifestation of the blanchable erythema stage of a pressure ulcer?(压疮淤血红润期的局部表现是)( )A. Purple-red discoloration at the pressure site(受压部位呈紫红色)B. Redness, swelling, heat, numbness, or tenderness(局部皮肤出现红、肿、热、麻木或触痛)C. Superficial tissue infection(浅层组织感染)D. Ulcer formation(溃疡形成)E. Subcutaneous induration(皮下硬结产生)