What is necrotic tissue, and which dressings or methods facilitate its removal?

What is necrotic tissue, and which dressings or methods facilitate its removal?

• A. Necrotic tissue is nonviable tissue (often black or brown). Removal via surgical, enzymatic (collagenase), autolytic moisture-retentive dressings, or when appropriate mechanical debridement.
• B. Necrotic tissue is viable tissue that should be preserved.
• C. Necrotic tissue is always infected and must be treated with antibiotics only.
• D. Necrotic tissue is any tissue that is red and moist and should be kept intact.

Answer: (A)

Necrotic tissue is nonviable tissue that cannot participate in healing, often appearing black or brown. The goal is to remove it to allow healthy tissue to grow and to reduce bacterial load. The best answer reflects this by naming several valid debridement approaches: surgical debridement physically removes necrotic tissue; enzymatic debridement can use agents like collagenase to digest necrotic tissue; autolytic debridement uses moisture-retentive dressings that harness the body’s own enzymes to break down dead tissue; and mechanical debridement is used when appropriate to physically remove debris. These methods address the nonviable tissue directly and create conditions for granulation and reepithelialization. Why the other descriptions don’t fit: necrotic tissue is not viable tissue, so it shouldn’t be preserved. Necrotic tissue is not always infected and does not respond to antibiotics alone—antibiotics treat infection, not remove dead tissue. Necrotic tissue is not characterized by being red and moist and should not be kept intact; that description fits viable, healthy tissue.

Necrotic tissue is nonviable tissue that cannot participate in healing, often appearing black or brown. The goal is to remove it to allow healthy tissue to grow and to reduce bacterial load. The best answer reflects this by naming several valid debridement approaches: surgical debridement physically removes necrotic tissue; enzymatic debridement can use agents like collagenase to digest necrotic tissue; autolytic debridement uses moisture-retentive dressings that harness the body’s own enzymes to break down dead tissue; and mechanical debridement is used when appropriate to physically remove debris. These methods address the nonviable tissue directly and create conditions for granulation and reepithelialization.

Why the other descriptions don’t fit: necrotic tissue is not viable tissue, so it shouldn’t be preserved. Necrotic tissue is not always infected and does not respond to antibiotics alone—antibiotics treat infection, not remove dead tissue. Necrotic tissue is not characterized by being red and moist and should not be kept intact; that description fits viable, healthy tissue.