Which should never be used during prep of the eye, ear or face and is not recommended for large open wounds, burns, or infants younger than 2 months of age?

Which should never be used during prep of the eye, ear or face and is not recommended for large open wounds, burns, or infants younger than 2 months of age?

• A. Hexachlorophene
• B. Iodophors
• C. Alcohol
• D. Chlorhexidine gluconate (CHG)

Answer: (D)

Chlorhexidine gluconate is a powerful skin antiseptic with residual activity, but it has safety limitations that make it unsuitable for certain areas and patient groups. Contact with the eye or other mucous membranes can cause chemical irritation or keratitis, so it should not be used for prepping the eye, ear, or facial regions where mucosal exposure is possible. It is also too harsh for large open wounds or burns, where its cytotoxic effects can damage viable tissue and hinder healing or increase absorption. In infants younger than about 2 months, the skin barrier is immature, increasing the risk of significant absorption and potential toxicity, so CHG is not recommended in that age group. These safety concerns explain why this antiseptic is avoided in those contexts, while other agents may be preferred depending on the situation.

Chlorhexidine gluconate is a powerful skin antiseptic with residual activity, but it has safety limitations that make it unsuitable for certain areas and patient groups. Contact with the eye or other mucous membranes can cause chemical irritation or keratitis, so it should not be used for prepping the eye, ear, or facial regions where mucosal exposure is possible. It is also too harsh for large open wounds or burns, where its cytotoxic effects can damage viable tissue and hinder healing or increase absorption. In infants younger than about 2 months, the skin barrier is immature, increasing the risk of significant absorption and potential toxicity, so CHG is not recommended in that age group. These safety concerns explain why this antiseptic is avoided in those contexts, while other agents may be preferred depending on the situation.