Common complication of sedating a patient prior to intubation
However, the difference lies in the fact that the induction drug and neuromuscular blocking agent are administered in rapid succession with no time allowed for manual ventilation.
Commonly used hypnotics include thiopental, propofol and etomidate.
Lidocaine has the ability to suppress the cough reflex which in turn may mitigate increased intracranial pressure.
For this reason Lidocaine is commonly used as a pretreatment for trauma patients who are suspected of already having an increase in intracranial pressure.
This time will be significantly reduced in obese patients, ill patients and children.
Preoxygenation is usually performed by giving 100% oxygen via a tightly fitting face mask.
Small changes in Fi O2 create dramatic changes in the availability of oxygen at the alveolus, and these increases result in marked expansion of the oxygen reservoir in the lungs prior to the induction of apnea.Preoxygenation or a maximum of eight deep breaths over 60 seconds results in blood oxygenation is not different from that of quiet breathing volume for 3 minutes.Newer methods of pre oxygenation include the use of a nasal cannula placed on the patient at 15 LPM at least 5 minutes prior to the administration of the sedation and paralytic drugs.Patients with reactive airway disease, increased intracranial pressure, or cardiovascular disease may benefit from pretreatment.