Specializing in Canine and Feline Neurology and Neurosurgery for over 35 years
A medical device used to measure the inspired and end tidal anesthetic agent (e.g. isoflurane, sevoflurane) concentration of the blood. Infrared light at a particular wavelength is shone through a gas sample and the absorption is proportional to the anesthetic vapor concentration. The end tidal level is very close to the arterial level and it reflects the depth at which a patient is anesthetized.