Certified Wound Ostomy Nurse (CWON) Practice Test

For which types of wounds is hydrotherapy most beneficial?

1. Dry wounds with minimal exudate

2. Wounds with loose slough and heavy bacterial counts

3. Completely granulated wounds

4. Wounds healing by primary intention

The correct answer is: Wounds with loose slough and heavy bacterial counts

Hydrotherapy is particularly beneficial for wounds with loose slough and heavy bacterial counts due to its ability to enhance cleansing and promote a more efficient healing environment. The process of hydrotherapy, such as whirlpool therapy or pulsatile lavage, utilizes water to help remove necrotic tissue, slough, and debris from the wound bed, which is crucial for preparing the area for healing. The agitation of water can effectively reduce bioburden—the amount of viable bacteria in a wound—by mechanically disrupting biofilms and loosening pathogenic organisms. Furthermore, hydrotherapy can stimulate blood flow to the area, increase skin temperature, and promote overall healing by providing a moist environment conducive to tissue regeneration. This method is ideal for wounds exhibiting signs of infection or those that require thorough cleaning to promote healing. In contrast, other wound types, such as dry wounds with minimal exudate or completely granulated wounds, may not benefit significantly from hydrotherapy since these conditions do not require aggressive debridement or may actually worsen if subjected to undue moisture or agitation. Wounds healing by primary intention typically do not necessitate such interventions, as they are usually closed and clean, focusing on maintaining a moist environment rather than aggressive cleaning.