Abstract:
:Nitrous oxide concentrations (V/V) at the delivery Rotameters block, nasal mask, pharynx and venous blood, were compared. There was a dilution of approximately 50% of the delivered nitrous oxide at the nasal mask which was further reduced in the pharynx. Venous blood concentrations 10 minutes after inhalation of nitrous oxide were low but as would be calculated from pharyngeal concentrations. After 5 minutes of oxygenation venous blood nitrous oxide concentrations were still relatively high. A total of 92% of subjects experienced a satisfactory effect with 30% nitrous oxide or less in the pharynx.
journal_name
Anaesthesiajournal_title
Anaesthesiaauthors
Sher AM,Braude BM,Cleaton-Jones PE,Moyes DG,Mallett Jdoi
10.1111/j.1365-2044.1984.tb07233.xsubject
Has Abstractpub_date
1984-03-01 00:00:00pages
236-9issue
3eissn
0003-2409issn
1365-2044journal_volume
39pub_type
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