BT_GS 1.27 Describe the pharmacology of nitrous oxide

These questions actually relate to Entonox which, as I’m sure you all know, is a 50:50 mixture of oxygen and nitrous oxide.

Q. An Entonox cylinder contains a mixture of liquid and vapour.  TRUE/ FALSE

Q. An Entonox cylinder is coloured French blue and white.  TRUE/ FALSE

Q. The Poynting effect refers to how interactions between two different gases leads to a change in their physical properties.  TRUE/ FALSE

Q. Entonox provides about 0.5 MAC.  TRUE/ FALSE

Q. Can cause megaloblastic anaemia.  TRUE/ FALSE

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