Lymphology Association of North America (LANA) Practice Exam

For which patients is bioimpedance testing most beneficial?

1. Patients with Stage 0 lymphedema

2. Patients with Stage 1 lymphedema

3. Patients with Stage 2 lymphedema

4. Patients with Stage 3 lymphedema

The correct answer is: Patients with Stage 0 lymphedema

Bioimpedance testing is most beneficial for patients with Stage 0 lymphedema because it provides an early detection mechanism for changes in fluid and tissue composition before the swelling is physically apparent. Stage 0 lymphedema is characterized by a latency period where the lymphatic system is compromised, but no visible swelling is present. Bioimpedance can effectively measure the interstitial fluid changes in these patients, allowing for timely intervention and management strategies to prevent progression to more severe stages. In contrast, as lymphedema progresses to later stages, the manifestations are more pronounced, and clinicians may rely more on physical examination and other diagnostic criteria. Therefore, while bioimpedance can be utilized in various stages of lymphedema, its greatest advantage lies in early detection and monitoring in patients who are still in Stage 0.