What could be a side effect of excessive nitrous oxide use?

The correct response addresses the side effects associated with excessive use of nitrous oxide. Nausea and vertigo are common reactions that can arise when a patient has been exposed to high levels of nitrous oxide. This gas is typically used for its sedative and analgesic properties in dental procedures, but if inhaled in excessive amounts, it can lead to an imbalance in the body's system.

Nitrous oxide affects the central nervous system, which can result in feelings of dizziness or spinning (vertigo) and can cause nausea due to its influence on how the body processes sensations of balance and equilibrium. Patients may also experience a sense of disorientation, which can further contribute to these feelings.

Understanding the risks connected with nitrous oxide is essential for dental assistants, as it helps them monitor patients for signs of excessive exposure and ensure their safety during and after procedures.