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Companion Animal Practice
A practical guide to capnography
  1. Graham Bilbrough

    Graham Bilbrough graduated from Cambridge in 2000. After a period in mixed practice in Oxfordshire, he completed a residency in anaesthesia and critical care at the Queen's Veterinary School Hospital in Cambridge and worked at Davies Veterinary Specialists in Hertfordshire. He subsequently returned to Queen's where he is currently a clinical senior anaesthetist.


CAPNOGRAPHY is considered to be ‘an essential part of routine monitoring during anaesthesia’ by the Association of Anaesthetists of Great Britain and Ireland as it results in improved patient safety. The technology, which has numerous clinical applications, is equally applicable for use during veterinary anaesthesia and provides extremely pertinent information without the need for invasive techniques or a significant investment in time. Unlike other types of anaesthetic monitoring, it also offers the opportunity to reduce expenditure on medical gases and inhaled anaesthetic agents. This article discusses the principles and benefits of capnography, and provides some pointers on what to look for when purchasing a capnograph, either new or second‐hand.

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