Physical Therapy Assistant Practice Exam

Which drainage dressing is typically used for significant absorption requirements?

1. Transparent film dressings

2. Hydrocolloed dressings

3. Alginates

4. Foam dressings

The correct answer is: Alginates

The correct choice for significant absorption requirements is alginates. Alginates are derived from brown seaweed and are highly absorbent, allowing them to form a gel-like substance when in contact with wound exudate. This property not only helps to manage large amounts of drainage effectively but also creates a moist environment that facilitates the healing process. Alginates are particularly suitable for wounds that produce moderate to heavy amounts of exudate, making them ideal for use in cases where significant absorption is necessary. Transparent film dressings are typically used for superficial wounds with minimal drainage, as they are designed to maintain moisture while allowing oxygen permeability. Hydrocolloid dressings provide a moist environment as well but are less suitable when significant absorption is needed due to their moderate absorbency levels. Foam dressings can absorb a fair amount of exudate, but they are generally not as adept as alginates for very high drainage situations. Thus, when considering dressings for wounds requiring significant absorption, alginates are the most appropriate choice.