Inclusion Criteria:  Children with ASA physical status I and scheduled for an elective procedure under general anesthesia without prior intravenous cannulation will be selected  Exclusion Criteria:  Children posted for any emergency procedure ASA class II and above, Children with abnormal airway anatomy. Children with active respiratory infection in the last 3 weeks. Children who are being treated with sedative or anticonvulsive agents. Children with heart, lung, neurologic, or central nervous system disorders.