The patient may wake up if you push the oxygen flush button during an anesthetic procedure.
The oxygen flush sends pure oxygen into the breathing circuit, bypassing the vaporizer. Anesthetic gas concentration decreases and patients may start to wake up.
Remember: do NOT hit the oxygen flush button if the pop-off valve is closed, or when using a non-rebreathing system, because you can deliver dangerously high airway pressure to the patient. Also not recommended to use ever in small animal patients.
STRATEGY HINT: This is a kind of “frequency” question.
That is, you can see how the choice “wake up” and the “deeper anesthesia” choice are flip sides of the same possibility. (Kind of like being repeated, or increased frequency!).
Chances are that the correct choice will include the choice that is repeated the most often.
In this case, even if you have no idea what the right answer may be, simply narrowing down to the two answer choices will increase your chances of picking correctly to 50:50!
