Blood Oxygenation Levels General Anesthesia Nurse 
The Anesthesia Consultant
OCTOBER 8, 2019
The most invasive type of airway tube used in anesthesia is called an endotracheal tube, or ET tube. At the onset of general anesthesia anesthesiologists place an ET tube through the mouth, past the larynx (voice box), and into the trachea (windpipe). The blood oxygen level dropped acutely to life-threatening levels.
The Anesthesia Consultant
FEBRUARY 19, 2016
If this airway obstruction is not remedied, the oxygen saturation will drop below a safe level of 90%. At these low blood oxygen levels, the brain and heart will be deprived of necessary oxygen. A prolonged low blood oxygen level can lead to life threatening cardiac dysrhythmias or a cardiac arrest.
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The Anesthesia Consultant
JULY 11, 2019
The surgery was done in a small community hospital where there was no ICU, blood bank, or emergency room. The patient had multiple low-normal blood pressure readings over the first 5 hours postoperatively, and was being observed by the nursing staff. Why Did Take Me So Long To Wake From General Anesthesia?
The Anesthesia Consultant
AUGUST 16, 2018
Some brain cells start dying within five minutes after the oxygen supply disappears, and brain hypoxia can rapidly cause severe brain damage or death. 1,2) In malpractice cases I’ve consulted on, a five-minute window is an accepted duration for low blood oxygen levels to cause permanent brain damage.
The Anesthesia Consultant
MARCH 4, 2022
Both patients and endoscopists expected deep general anesthesia, not moderate sedation. Gastroenterologists were ill-equipped to shoulder the responsibility of general anesthesia and airway management. Patients who are confined to bed can use their voice to communicate directly to a nurse’s smartphone.
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