The words tijera and tijeras can be used interchangeably in Spanish to refer to a single pair of scissors.
Both IV sedation (twilight) and general anesthesia are used commonly for cosmetic or plastic surgery. Regardless of technique, the patient's vital signs must be monitored, which include but not limited to heart rate, blood pressure, and breathing rate.
General anesthesia is medicine to help keep you asleep, relaxed, and pain free during a procedure or surgery. The medicine is given through your IV or, it may be a gas that is inhaled. Your healthcare provider usually uses both the inhaled and the IV medicines together.