Certified Wound Ostomy Nurse (CWON) Practice Test

What is a constant low pressure support surface?

1. A surface that provides alternating pressure redistribution

2. A surface that provides constant pressure redistribution

3. A surface that facilitates patient movement

4. A surface that conforms minimally to the patient

The correct answer is: A surface that provides constant pressure redistribution

A constant low pressure support surface is designed to provide a stable and even distribution of pressure across the patient's body. This is essential for preventing pressure injuries, especially in individuals with limited mobility or those who are bedridden. By maintaining a consistent level of low pressure, these surfaces help minimize localized pressure points that can lead to tissue ischemia and damage over time. This type of surface differs from those that provide alternating pressure redistribution, which periodically change the pressure points to relieve stress on specific areas. Additionally, it does not focus primarily on facilitating patient movement or conforming minimally to the patient, which would not offer the necessary support and pressure relief required to prevent skin damage. Thus, the key characteristic of a constant low pressure support surface is its ability to sustain low pressure consistently, ensuring the safety and comfort of the patient.