PADI Divemaster Certification Practice Exam

What can a long, forceful equalization cause?

1. Eardrum rupture

2. Round window rupture

3. Sinus congestion

4. Mask squeeze

The correct answer is: Round window rupture

A long, forceful equalization can indeed lead to a rupture of the round window, which is an important aspect of understanding equalization while diving. The round window is a flexible membrane located in the inner ear that helps with the transition of pressure. When divers attempt to equalize their ears aggressively or repeatedly, particularly under high pressure, this force can exceed the structural limits of the round window membrane, potentially causing it to rupture. This situation can result in various symptoms, including sudden hearing loss, dizziness, or a feeling of fullness in the ear, which underscores the importance of gentle and controlled equalization methods. It is essential for divers to understand their limits and practice proper equalization techniques to avoid injury while diving.