This short video provides information regrding the basic principles on which administration of anaesthesia and anaesthetic agents is done. It explains the concepts of solubility, potency and onset of action. 00:00-00:14 Lipid Solubility 00:15-00:46 Correlation of Solubility & Onset of Action 00:47-00:57 Correlation of Solubility & Potency 00:58-01:18 Minimum Alveolar Concentration & Potency 01:29-01:54 Example of Nitric Oxide 01:55-02:16 Example of Halothane