A nurse is observing a new nurse irrigate a client's wound. Which of the following actions should the nurse identify as an indication that the new nurse understands wound irrigation?

Choice A reason: Cleansing wounds with povidone-iodine on cotton balls is not recommended because it can damage granulation tissue and delay healing. Cotton fibers may also remain in the wound, increasing infection risk. Choice B reason: Administering analgesia prior to irrigation is appropriate for pain management but does not directly demonstrate correct irrigation technique. While important, it is not the best indicator of proper wound irrigation practice. Choice C reason: Warming irrigation solution in the microwave is unsafe because it can cause uneven heating and burns. Solutions should be warmed to room temperature using safe methods, not microwaves. Choice D reason: Irrigating from the cleanest to the most contaminated area is the correct technique. This prevents the spread of microorganisms from contaminated areas into clean tissue, promoting healing and reducing infection risk.