Preoxygenation is routine preior to induction of general ancsthesia for the purpose of maintaining oxygenation during laryngoscopy and tracheal intubation.
A common method of preoxygenation is 3∼5 minutes of 100% O_2 breathing. In some emergency st...
Preoxygenation is routine preior to induction of general ancsthesia for the purpose of maintaining oxygenation during laryngoscopy and tracheal intubation.
A common method of preoxygenation is 3∼5 minutes of 100% O_2 breathing. In some emergency states, there may not be adequate time for a full 3-5 min of preoxygenation.
Recently, Gold and some others showed that four maximally deep inspirations of 100% O_2 within 30 seconds are as effective as 5minutes of inhaltion of 100% O_2 for increasing the PaO_2
We compared the changes of arterial blood gas beween a group which took deep breaths for 1 mimute with 100% O_2 and a group breathing spontaneously for 5 minutes with 100% O_2.