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if the anesthetic becomes too “light,” the patient will start to   Disclaimer/Financial Conflicts
          “breath up” or move, giving the anesthetist an indication that   The authors received no financial support for this work. MWG
          the patient requires more volatile. The technique could involve   did not create it as part of his work requirements; it was writ­
          the following;                                     ten on his own time. The authors have nothing to disclose.

           1.  Application of monitoring                     Author Contributions
           2.  Obtain IV access                              Both authors approved the final manuscript.
           3.  Preoxygenation with SIB connected to the draw­over va­
              porizer using either bottled oxygen or oxygen concentrator  References
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