What is the physiological effect of moist heat on the treated area?

Choice A rationale
Leaving the old dressing in place and simply covering it with new wet dressings would not address the issue of the dressing being adhered to the wound bed, which could lead to further tissue damage when it is eventually removed.

Choice B rationale
Povidone-iodine is an antiseptic and not typically used to moisten dressings that are stuck to a wound bed, as it may irritate the wound and delay healing.

Choice C rationale
Adding normal saline is the gentlest method to loosen a dressing that is stuck to a wound bed. It helps to rehydrate the dressing and the wound, making it easier to remove without causing additional trauma to the healing tissue.

Choice D rationale
Pulling off the dressing using slow, steady pressure could cause damage to the new tissue forming in the wound bed and should be avoided unless all other methods have failed.

Choice A rationale
Hydrocolloid dressings are not designed to keep a wound dry; instead, they maintain a moist environment which is conducive to wound healing. They absorb exudate and form a gel, which promotes granulation and epithelialization.

Choice B rationale
The primary purpose of a hydrocolloid dressing is to remain in place for an extended period, typically up to 7 days. This minimizes disturbance to the wound, reduces the risk of infection, and maintains a moist healing environment.

Choice C rationale
While hydrocolloid dressings can help prevent bacterial growth due to their occlusive nature, their main function is not to destroy microorganisms. They provide a barrier against external contaminants and support autolytic debridement.

Choice D rationale
The main purpose of hydrocolloid dressings is to promote a moist healing environment. They contain gel-forming agents that absorb exudate and maintain a moist wound bed, which facilitates faster healing and reduced scar formation.