The purpose of this randomized clinical trial is to compare the effects of three methods of anesthesia induction (propofol, etomidate and propofol+etomidate) on quality of laryngeal mask airway replacement and hemodynamic stability in elective surgeries. A total of 90 patients with ASA I and II class, undergoing elective surgeries, will be randomly allocated into one of the following three groups. Before anesthesia induction all patients will receive %0.9 Normal saline 6 mL/kg. Thirty minutes before anesthesia induction, all patients were premedicated using fentanyl 2microg/kg + midazolam 0.025 mg/kg +lidocaine 1mg/kg intravenously (IV). Interventions in this clinical trial are: propofol Propofol 2.5 mg/kg, or Etomidate Etomidate 0.3 mg/kg, or propofol and Etomidate Etomidate 0.2 mg/kg plus propofol 1 mg/kg which will be given once to induce anesthesia required for surgery. Heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure and pulse oximetry are measured before induction and 30 seconds after induction. Laryngeal masks are inserted by a blind investigator 60 seconds after anesthesia induction. Apnea time is recorded in all patients. The correct placement of LMA was verified using capnography, chest movement and absence of leakage around the cuff. Later, anesthesia is maintained using oxygen (3 L/min), nitrous oxide (3 L/min), and isoflurane(1-1.5%).The reactions from the patients are also graded. If LMA insertion is unsuccessful and patient had coughing, gagging or movement of head or limbs, the patients receive an additional dose in all three groups. In group one: propofol 0.5 mg/kg, group two: etomidate 0.15 mg/kg and group three: propofol 0.25 mg/kg plus etomidate 0.1mg/kg.