Psychiatrists usually have a 24 hour clause set by contract or hospital bylaw. If the hospital wants us to see ED consults ASAP, the CEO can dip into their pocket to pay us thousands per shift to standby, like they do for ortho etc. But they don't. Unlike ortho, cards, etc, psychiatrists aren't called in to fix things like set a fracture or put in a balloon. No, we are consulted to soak up liability, read tea leaves as to whether it's ok to release from the ED a stranger who made threats to shoot themselves and others, and add our names next to the EM physician on the defendant list.
Also, there aren't many psych emergencies. Emergencies are related to lethal harm or med reactions (DRESS, SJS, NMS, SS). But the patient is already in the ED/hospital, so there should be no lethality issues and med reactions are within the domain of EM, IM, CC etc.
There isn't. Likely because our purely cognitive work requires us to spend more time and thought on patients, as reflected in our hefty notes (which no one wants to read, except lawyers), relative to other specialties. We are also the only specialty that routinely testifies in court during residency.
Psychiatrists have a bit of insight about the BS in the ED. We spend a chunk of residency in the ED for emergency psych and psych consults. Some programs have psych residents rotate in the ED as... EM residents. Despite a significant portion of ED (and FM) visits being related to psychiatric complaints, how many EM programs require EM residents to rotate on the psych ward?
During training, many EM physicians would tell me about the "tricks" to get patients accepted to the psych ward. Seriously, do you not see "Psychiatry" emblazoned on my white coat? Who do you think you will be asking to admit your ED patients tonight?
So when we stroll into the ED after lunch, it's because we know. Or better yet, when we decline to ever work in the ED.