What is the minimum amount of oxygen required during nitrous oxide sedation?

During nitrous oxide sedation, it is essential to maintain a safe level of oxygen to prevent hypoxia. The correct minimum amount of oxygen required is 20%. Maintaining this level helps ensure that the patient receives sufficient oxygen along with the nitrous oxide, promoting safety throughout the sedation process.

While the other options suggest slightly higher percentages, clinical guidelines widely accept that a minimum of 20% oxygen in the gas mixture is both effective and safe for patients receiving nitrous oxide for sedation. This standard allows for the adequate management of respiratory function and reduces the potential risk of adverse effects related to low oxygen levels.