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

What indicates wound colonization?

1. More than 10^5 org/ml

2. Interfering with wound repair

3. Less than 10^5 org/ml without impaired healing

4. Presence of purulent drainage

The correct answer is: Less than 10^5 org/ml without impaired healing

Wound colonization occurs when microorganisms are present on a wound surface but do not cause an infection or impede the healing process. The specific threshold of less than 10^5 organisms per milliliter indicates that while the bacteria are present, they are not overwhelming the wound or causing harm. This allows for the natural healing mechanisms of the body to function effectively. When the level is below this threshold, the body can often manage and maintain homeostasis even in the presence of these microorganisms. It’s important to differentiate colonization from infection; in colonization, the organisms do not disrupt the healing process, allowing the wound to heal appropriately. Higher levels, exceeding 10^5 organisms per milliliter, typically indicate infection, where the wound is likely compromised, and the healing process is interfered with. The presence of purulent drainage might suggest an ongoing infection rather than mere colonization, emphasizing that the healing is being negatively impacted. Therefore, recognizing colonization involves understanding the balance between microorganism levels and the body's ability to heal effectively.