Which irrigation practice is associated with delaying wound healing?

Which irrigation practice is associated with delaying wound healing?

• A. Hydrogen peroxide poured into wound.
• B. Using sterile saline at body temperature.
• C. Gentle, directed irrigation.
• D. Povidone-iodine irrigation.

Answer: (B)

The key idea is that wound irrigation should cleanse without harming the cells that drive healing. Sterile saline warmed to body temperature provides an isotonic, non-irritating wash that removes debris and bacteria while preserving the function of critical repair cells like fibroblasts and keratinocytes. Keeping the wound environment at physiologic temperature helps maintain normal enzyme activity, blood flow, and cellular processes necessary for inflammation, proliferation, and remodeling. In contrast, certain antiseptics can slow healing because they are cytotoxic to these repair cells. Hydrogen peroxide can damage tissues and disrupt the formation of granulation tissue, and povidone-iodine can impair epithelialization by harming skin cells. Gentle, directed irrigation is the technique that minimizes trauma while effectively cleaning, which further supports timely healing. So, sterile saline at body temperature is the irrigation practice that best supports healing and is not associated with delaying it; cytotoxic antiseptics, when used routinely, are more likely to delay healing.

The key idea is that wound irrigation should cleanse without harming the cells that drive healing. Sterile saline warmed to body temperature provides an isotonic, non-irritating wash that removes debris and bacteria while preserving the function of critical repair cells like fibroblasts and keratinocytes. Keeping the wound environment at physiologic temperature helps maintain normal enzyme activity, blood flow, and cellular processes necessary for inflammation, proliferation, and remodeling.

In contrast, certain antiseptics can slow healing because they are cytotoxic to these repair cells. Hydrogen peroxide can damage tissues and disrupt the formation of granulation tissue, and povidone-iodine can impair epithelialization by harming skin cells. Gentle, directed irrigation is the technique that minimizes trauma while effectively cleaning, which further supports timely healing.

So, sterile saline at body temperature is the irrigation practice that best supports healing and is not associated with delaying it; cytotoxic antiseptics, when used routinely, are more likely to delay healing.