Endotracheal intubation is required for inhalation anesthesia.

• A. True
• B. False
• C. Sometimes
• D. Not specified

Answer: (B)

Endotracheal intubation is not always necessary for inhalation anesthesia. Inhaled anesthetics can be delivered by a mask or through a scavenged system while the animal breathes freely, which is common for induction or shorter procedures. Intubation is used when an airway needs to be protected (to reduce the risk of aspiration) and when there is a need for precise control of ventilation, such as during longer or more invasive surgeries or when providing positive-pressure ventilation. So, while intubation is a common and important tool in many anesthesia protocols, it is not inherently required for all inhalation anesthesia.