The document outlines potential complications during and after anesthesia and intubation. It discusses intraoperative complications that can arise from laryngoscopy and endotracheal tube insertion such as aspiration, hypoxia, hypotension/hypertension, and hypothermia/hyperthermia. Postoperative complications include trauma to lips, teeth, tongue, tonsils, epiglottis or vocal cords, as well as injury to the trachea or blockage of the endotracheal tube. The document provides guidelines for monitoring patients' oxygen levels, end-tidal carbon dioxide, blood pressure, blood sugar, fluid intake and output, and temperature during and after the procedure.