Water Safety Instructor (WSI) Practice Exam

The correct response highlights that hyperventilation and breath-holding are not permitted during swimming lessons due to the associated risks and safety concerns. Hyperventilation can lead to a state of lowered carbon dioxide levels in the blood, which may result in fainting or disorientation, particularly when underwater. This can pose a serious danger not only to the individual practicing these behaviors but also to others in the water, as it may compromise their ability to respond effectively in an emergency situation.

Furthermore, breath-holding can result in shallow water blackout, a condition where an individual loses consciousness underwater due to a lack of oxygen. This is especially risky for swimmers who may not be fully aware of their limits or who are in a controlled learning environment with varying levels of skill and supervision.

By enforcing a strict policy against hyperventilation and breath-holding, swimming instructors prioritize the safety of all participants and help establish a culture of responsible swimming that emphasizes awareness of personal safety and the dangers of such practices.