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

Which of the following is true regarding transparent adhesive dressings?

1. They are impermeable to gases

2. They provide high absorption

3. They allow for gas exchange but not for bacteria

4. They are recommended for fragile skin

The correct answer is: They allow for gas exchange but not for bacteria

Transparent adhesive dressings are designed to be semi-permeable, allowing for gas exchange while simultaneously protecting the wound from external contaminants, particularly bacteria. This characteristic is essential in maintaining a moist wound environment, which is known to promote healing. The dressings allow oxygen to reach the wound site, which is vital for cellular respiration and healing processes, while preventing the entry of larger pathogens such as bacteria. This balance is crucial for infection control and promoting an optimal healing environment. The other options do not accurately represent the properties of transparent adhesive dressings. For instance, stating that they are impermeable to gases contradicts their designed function, as they must allow gases to permeate for healing. Furthermore, these dressings are not primarily for high absorption; rather, they are used for wounds with minimal exudate. Lastly, while they can be used on fragile skin with caution, this is not their primary recommendation. They must be applied carefully to avoid damaging the skin upon removal.