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

What is the relationship between pressure and time tolerance according to wound management principles?

1. Increased pressure means increased time tolerance

2. Reduced pressure means increased time tolerance

3. Consistent pressure means constant time tolerance

4. Intermittent pressure means no time limit

The correct answer is: Reduced pressure means increased time tolerance

The relationship between pressure and time tolerance in wound management is critical for preventing tissue damage and promoting healing. Reduced pressure means increased time tolerance is correct because lowering the pressure on a wound allows more time before the tissue begins to experience ischemia or injury. When pressure is reduced, the blood flow to the area is maintained, which is essential for providing necessary nutrients and oxygen to the tissues. This enhanced circulation helps in maintaining tissue viability for a longer duration. Conversely, high pressure applied to tissue for extended periods can quickly lead to tissue necrosis due to compromised blood flow. Thus, in wound management, maintaining an appropriate level of pressure is crucial for ensuring adequate time tolerance, allowing the tissue to continue healing without sustaining damage. The other options do not accurately reflect this foundational principle of wound management.