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Efficacy of the Ejector Flow‐meter. A Scavenging Device for Anaesthetic Gases
Author(s) -
OBEL D.,
JØRGENSEN S.,
FERGUSON A.,
FRANDSEN K.
Publication year - 1985
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/j.1399-6576.1985.tb02172.x
Subject(s) - medicine , nitrous oxide , anesthesia , halothane , injector , fresh gas flow , inhalation , sevoflurane , mechanical engineering , engineering
Measurements of air concentrations of nitrous oxide and halothane in the breathing zone of the anaesthetist and the operating‐room nurse were carried out during inhalation anaesthesia with a Mapleson D system. Gas removal was performed from inside the breathing system at the same rate as that of the fresh gas inflow by means of an ejector flow‐meter. The concentrations of nitrous oxide and halothane were maintained below the Danish Threshold Limit Values of 100 and 5 parts per million, respectively, by using this type of scavenging. When these anaesthetics were used simultaneously, the reduced Threshold Limit Values were not exceeded during endotracheal anaesthesia.