Anaesthesia machines are supplied through a central medical gas pipeline system (MGPS) or cylinders. Type E cylinders are used as backup when the pipeline system fails.[1,2] Ensuring a filled type… Click to show full abstract
Anaesthesia machines are supplied through a central medical gas pipeline system (MGPS) or cylinders. Type E cylinders are used as backup when the pipeline system fails.[1,2] Ensuring a filled type E oxygen cylinder attached to the anaesthesia machine is an element of the pre-use daily equipment checklist in the operating rooms (ORs).[3] Various safety features ensure that correct gas is delivered to the patient through the cylinders, namely colour coding and label, pin index system, etc. Pin index is unique to each gas and prevents connection of wrong cylinder to the anaesthesia machine.[4]
               
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