Physical Therapy Assistant Practice Exam

Which type of dressing is nonabsorbent and not indicated in the presence of significant drainage?

1. Transparent film dressings

2. Hydrocolloid dressings

3. Alginate dressings

4. Gauze dressings

The correct answer is: Transparent film dressings

Transparent film dressings are nonabsorbent materials that are designed to provide a protective barrier to the wound while allowing for oxygen exchange. They are highly occlusive and are best used for superficial wounds with minimal drainage, such as abrasions or postoperative incisions. These dressings help maintain a moist wound environment, which can be beneficial for healing, but they can become compromised in conditions where there is significant drainage. In such cases, moisture can build up under the dressing, leading to skin maceration or breakdown. Their nonabsorbent nature makes them unsuitable for wounds that produce excessive exudate, as they do not absorb drainage effectively. This is why they are not indicated for use in situations where significant drainage is present. Instead, other dressing types, such as alginate or hydrocolloid dressings, are better suited for managing highly exudative wounds due to their absorbent properties.