What type of dressing is characterized by a primary dressing with a dwell time of 10-15 minutes?

The correct choice pertains to a dressing that has a primary therapeutic action and is noted for its dwell time of 10-15 minutes, which aligns with the properties of polyhexamethylen biguanide (PHMB) dressings. PHMB dressings are often used for their antimicrobial properties and can be effective in cases of infected wounds. The specified dwell time indicates the period needed for the dressing to exert its action effectively before it should be changed. This characteristic can enhance wound healing by allowing sufficient time for the agent to penetrate and act on the wound.

Other options, while they may possess beneficial properties, do not typically feature such a short dwell time or primary action as that attributed to PHMB. Medical honey, for instance, is more often left on for longer periods for its debridement and hydrating properties. Cadexomer iodine is also used differently, as it relies on prolonged contact for its iodine release and antimicrobial effects. Silver dressings usually provide sustained antimicrobial action over a longer application duration, making them distinctly different from PHMB in terms of the expected dwell time. Understanding these properties helps in selecting appropriate dressings for effective wound management.