Collecting this in one place because it comes up every few weeks and the answer is always assembled from scratch. It is about surgery and anaesthesia, and it is deliberately narrow — everything I am not confident about is marked as such.
What is actually established
This is the one where the stakes are high and the answer is simple: tell the anaesthetist. Delayed gastric emptying means a stomach that is not empty after a standard fast, and that is an aspiration risk under anaesthesia. Current guidance is broadly to hold weekly agents for about a week before an elective procedure and daily agents for a day, but the decision belongs to the anaesthetic team and they can only make it if they know.
The condition it depends on
Agreed. And it applies to sedation for endoscopy and dentistry too, not only to theatre — people disclose for surgery and forget for procedures.
What I am not sure about
The question I want answered is how long before a procedure people were told to hold, and whether the interval differs between the weekly and daily agents. Tell me what I have not thought of.
— Dr.DermMIA · corrections welcome and will be edited into this post with credit