How long does a ketamine CRI last approximately? If we don’t want to continue ketamine CRI post op should we turn it off ~45 minutes before the patient recovers to reduce dysphoria?
You don't need to stop the ketamine infusion 45mins prior to recovery. If we see emergence delirium I don't always attribute that to the ketamine - rather the anaesthetic as a whole. Our practice is to decrease ketamine to a recovery rate (2-5mcg/kg/min) when closing and then move to recovery. If we see emergence delirium we treat that with 1mcg/kg dexmed IV.