Do you have a respiratory therapy department? There are definitely evidence-based best practices for assessing for extubation readiness, extubation, and post-extubation care.
Extubation readiness: able to follow commands, off most sedation, minimal use of vasopressors, PEEP less than 8 cm H2O, FiO2 less than 0.5, a pressure support trial with minimum settings while achieving adequate tidal volumes.
PS trial means different things in different facilities. A true PS trial would be a PEEP of 3-5 cm H2O, and a PS of 0-3 cm H2O.
The patient needs to have a significant leak when the cuff is deflated, not be producing excessive secretions, and able to manage those secretions.
Post extubation depends on the patient's needs. Many patients are fine on room air or 1-4 LPM NC. Some people will extubate to HHFNC, CPAP, or BiPAP. Some patients need a dose or two of racemic epi to manage swelling. And of course, some patients will fail extubation and need to be reintubated which is absolutely not a failure on the part of the RT/RN/MD.