Which solution is best for irrigating lacerated tissue over a wound on the arm?

Using saline irrigation or soapy water is considered the best practice for cleaning lacerated tissue over a wound on the arm because it effectively removes debris and contaminants without causing additional damage to the tissue. Saline is isotonic and thus does not disrupt the cellular integrity of the tissues. It helps maintain the moisture required for optimal healing and minimizes the risk of inflammation that can occur with harsher solutions.

Soapy water can also be effective, as long as it is used appropriately and thoroughly rinsed. Its mild cleansing properties can help remove dirt and minimize the risk of infection. This approach prioritizes the safety and healing potential of the wound.

On the other hand, a diluted povidone-iodine solution can be effective in preventing infection, but it can also be cytotoxic in higher concentrations and may impede healing if used for irrigation. The use of hydrogen peroxide is generally discouraged in wound care because, while it has antiseptic qualities, it can also damage fibroblasts and delay the healing process. Similarly, saline infused with antibiotics might not necessarily provide the cleansing action needed for irrigation and is not a standard practice for initial wound care.