Which topical wound care agent is cytotoxic to healthy tissue and should be used sparingly?

Which topical wound care agent is cytotoxic to healthy tissue and should be used sparingly?

• A. Hydrogen peroxide
• B. Iodine
• C. Chlorhexidine
• D. Silver-containing dressings

Answer: (A)

Hydrogen peroxide is the topical wound care agent that is cytotoxic to healthy tissue and should be used sparingly. It works by releasing reactive oxygen species that can damage not only bacteria but also viable cells such as keratinocytes, fibroblasts, and endothelial cells. This oxidative damage can slow or impair wound healing if the agent is applied to tissue with living cells, especially with repeated use or higher concentrations. Because of this potential to hinder healing, it’s best reserved for brief use to help debride necrotic tissue, rather than for routine cleansing of most wounds. Other antiseptics like iodine, chlorhexidine, or silver-containing dressings have antimicrobial effects but are used with more caution to balance infection control with tissue safety; they are generally preferred for ongoing wound care when used at appropriate concentrations.

Hydrogen peroxide is the topical wound care agent that is cytotoxic to healthy tissue and should be used sparingly. It works by releasing reactive oxygen species that can damage not only bacteria but also viable cells such as keratinocytes, fibroblasts, and endothelial cells. This oxidative damage can slow or impair wound healing if the agent is applied to tissue with living cells, especially with repeated use or higher concentrations. Because of this potential to hinder healing, it’s best reserved for brief use to help debride necrotic tissue, rather than for routine cleansing of most wounds. Other antiseptics like iodine, chlorhexidine, or silver-containing dressings have antimicrobial effects but are used with more caution to balance infection control with tissue safety; they are generally preferred for ongoing wound care when used at appropriate concentrations.