Which of the following are examples of medical mixed gases?

The correct answer includes Heliox (a mixture of oxygen and helium), Carbogen (a mixture of oxygen and carbon dioxide), and Nitrous Oxide combined with oxygen. These formulations are classified as medical mixed gases because they are specific combinations of gases designed for therapeutic use in clinical settings.

Heliox is beneficial in treating patients with respiratory conditions, as it reduces airway resistance and improves gas exchange due to the lower density of helium compared to air. Carbogen is used in certain medical applications to stimulate respiration and has a role in improving blood flow. The combination of nitrous oxide and oxygen is often employed for analgesic and anesthetic purposes, providing pain relief while minimizing the potential for hypoxia.

In contrast, options that only list individual gases, such as pure oxygen or separate medical gases that are not mixed, do not qualify as medical mixed gases. They lack the specific combination aspect that is crucial for the defined purpose in therapy.