oxygen is essential for cell metabolism and in turn tissue oxygenation is essential for normal physiological functions,so modern medicine can not be practiced without oxygen. oxygen is cololess and odorless gas,its most reactive non metalic element and most abundent chemical in earth's biospher,first discoverd in 1774 but used in medical science from mid 20 th century.
no operation theatre,indoor wards,icu complete without oxygen,useful in prehospital setting to icu. indications are acute....major trauma,haemorrage,resusctation,anaphylaxis,shockconvulsions and hypothermia chronic...medical conditions like copd and chf supplied as in liquid form below -183c in tanks 2 cyliders for wards ,anaestheic use and mech ventilators 3 electric driven oxygen concetrators...for home or small set ups 4 hyperbaric chembers for carbon monooxide poisoning ,decompression sickness and gas gagrene etc…
