Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

Which condition is an appropriate indication for using NPWT?

1. Shallow surgical wounds with minimal exudate

2. Deep wounds with excessive amounts of exudate

3. Superficial abrasions

4. Low-risk surgical incisions

The correct answer is: Deep wounds with excessive amounts of exudate

Negative Pressure Wound Therapy (NPWT) is designed to manage moderately to heavily exuding wounds, as well as those that are deep and require aid in the healing process. The mechanism of NPWT involves the application of sub-atmospheric pressure to the wound surface, which helps to remove excess exudate, reduce edema, and promote blood flow to the area. This combination supports the formation of granulation tissue and accelerates the healing process. In the case of deep wounds with excessive amounts of exudate, the application of NPWT helps control the wound environment, preventing maceration and promoting a moist healing environment conducive to tissue regeneration. This setup is vital in managing more complex wounds that might not respond adequately to standard dressing techniques. Other options such as shallow surgical wounds with minimal exudate, superficial abrasions, and low-risk surgical incisions generally do not warrant the use of NPWT because they do not exhibit the characteristics—depth, exudate levels, and complexity—that benefit from the treatment. Instead, these types of wounds can often heal satisfactorily with basic wound care management and dressings without the need for specialized therapies like NPWT.