Critically sick clients: Nitrous oxide inactivates methionine synthase by using oxidation from the cobalt in vitamin B12 and may lead to megaloblastic anemia. This enzyme is important for vitamin B12 and folate metabolism and plays a role in DNA and RNA synthesis and also the synthesis of other substances. 2O.[43] https://nitrousoxidecanisters54207.wikinstructions.com/1741119/details_fiction_and_nitrous_oxide_canisters