Lymphology Association of North America (LANA) Practice Exam

What parameter(s) determine the amount of compression exerted on the limb by bandages?

1. Number of bandage layers

2. Diameter of the limb

3. Tension on bandages

4. All are true

The correct answer is: All are true

The amount of compression exerted on a limb by bandages is influenced by several parameters, making the understanding of these factors critical for effective treatment in lymphology practice. The number of bandage layers plays a significant role because each additional layer compounds the overall pressure exerted on the limb. More layers create more resistance and, consequently, more compression. This is particularly important for conditions that require consistent and uniform pressure to manage swelling or lymphatic fluid. The diameter of the limb is also a crucial factor. A larger diameter limb inherently requires more material to wrap around it, which can lead to increased compression. Conversely, a smaller limb diameter may result in less compression from the same bandage. This anatomical variation must be considered in practice to achieve the desired therapeutic effects. Tension on bandages is vital as well. The amount of stretch applied to the bandage during application directly correlates to the level of compression. Tighter bandage application results in higher pressure on the limb, whereas a looser application will yield lower pressure. Mastery of how to manipulate bandage tension is fundamental for practitioners to ensure appropriate compression levels. When all these factors—number of bandage layers, limb diameter, and tension on bandages—are taken into account, it