Which is wrong regarding entonox?: (A) Is used for labor analgesia, (B) Is a mixture of nitrous Oxide and oxygen in the ratio of 50: 50, (C) Pin index is 7, (D) Can be used for anesthesia
Answer is D. Entonox is used for analgesia not anesthesia. Entonox (Nitrous oxide and oxygen) is a colourless, odourless gas made up of half oxygen and half nitrous oxide. It's also known as laughing gas. It can take the edge off labour pain, rather than blocking it out