Laryngoscopy anesthesia usually takes 2 hours before eating.
Laryngoscopy mainly refers to electronic fiberoptic laryngoscopy, the method of anesthesia is commonly used in the pharyngeal cavity 1~2% lidocaine solution sprayed or slowly contained, which plays a role in making the surface of the mucous membrane sensory nerve endings less sensitive. So that the examined person better cooperation.
Lidocaine is an amide-type intermediate local anesthetic, strong penetration, no obvious vasodilator effect, the drug from the local elimination of about 2 hours, so in the completion of surface anesthesia and electronic fiberoptic laryngoscopy, should be prohibited from eating and drinking within 2 hours, to avoid due to the paralyzed state of the larynx, swallowing food or water accidentally inhaled into the trachea, resulting in irritation choking, or even triggering infection or tracheal spasm.
Before laryngoscopy anesthesia, you can consult the examination medical personnel, fully understand the relevant knowledge, and follow the doctor’s instructions to standardize the treatment.