Nitrous oxide / oxygen

Nitrous oxide / oxygen

 Nitrous oxide and oxygen are gases that occur naturally in the atmosphere. Nitrous oxide is a natural constituent of the atmosphere present in very small quantities of approximately 0.00005 per cent (or 5 parts per million [ppm]) while oxygen occurs at the much higher concentration of approximately 20 per cent in the earth’s atmosphere. A dentist in 1844, Horace Wells, invented anaesthesia by using nitrous oxide as the very first anaesthetic agent (Nitrous oxide / oxygen)..  But to use it safely, nitrous oxide must be mixed with at least 20% oxygen, because oxygen is essential for metabolism in all mammals and a host of other animals. Used on its own, 100 per cent nitrous oxide is an asphyxiant.   However, although an asphyxiant on its own, when   given with at least 20% oxygen the mixture is very safe for anaesthesia or conscious sedation (Nitrous oxide / oxygen). Conscious sedation with nitrous oxide/oxygen is also called various other names including: Minimal Sedation, Relative analgesia or Inhalation Sedation. The combination of nitrous oxide with at least 20% oxygen has proved one of the safest therapeutic mixtures known to man with over a century and a half of effective and safe use. It is often regarded as the safest therapeutic mixture known to man.  A dentist not only invented anaesthesia using nitrous oxide, but since the late 1940’s dentists have been at the forefront of promoting the  use of nitrous oxide/oxygen for conscious sedation. It is regularly used in dental practice in the USA, Europe and elsewhere in the world for minor surgery (Nitrous oxide / oxygen). A mixture of nitrous oxide with at least 20% oxygen is commonly used worldwide for anaesthesia by physicians and doctors. Doctors, physicians and mid-wives also use it for reducing pain in obstetrics. The use of nitrous oxide/oxygen for treating addiction and minor surgery is also gradually being used by doctors worldwide. Nitrous oxide at much higher concentrations mixed with a minimum of 20% oxygen is also universally used for anaesthesia (Nitrous oxide / oxygen).

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 Nitrous oxide / oxygen

Nitrous oxide / oxygen)

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