What can be mixed with N2O2 for inhalation analgesia?

Inhalation analgesia using nitrous oxide (N2O) is a common practice in dentistry for alleviating pain and anxiety during procedures. For safety and effectiveness, nitrous oxide must be mixed with oxygen. This combination ensures that the patient is receiving an adequate supply of oxygen, which is crucial since nitrous oxide on its own can lead to hypoxia—an insufficient level of oxygen in the body.

Oxygen is the only gas that can be safely combined with nitrous oxide for inhalation analgesia because it effectively maintains patients’ respiratory function and prevents the risk of serious adverse effects. The ideal mixture commonly used is typically 30-70% nitrous oxide to oxygen, depending on the required level of sedation and the patient's specific needs.

The other options like nitrogen, carbon dioxide, and air are not suitable for use with nitrous oxide in this context. Nitrogen does not have any analgesic properties and would not provide the desired effect. Carbon dioxide is not safe for this purpose as it can lead to respiratory issues. Air, while containing oxygen, introduces a variable mix of gases that may not ensure adequate oxygen levels for the patient during sedation. Hence, oxygen is the only appropriate choice for mixing with nitrous oxide in inhalation analges