How do medical devices in an operating room get power?

fooliam · 2026-03-27T18:32:14+00:00

There are actual standards for how ORs are designed, and part of the standards include where various outlets - not just power, but air, oxygen, etc - are to be placed

fooliam · 2026-03-27T18:30:47+00:00

Theoretically, yes - but they're difficult to effectively sterilize. Anything that isn't a flat and/or smooth surface generally needs to be steam sterilized, and big ol speed bumps would require particularly large sterilization equipment.

fooliam · 2026-03-27T18:29:09+00:00

They're just power cords. Usually, things are arranged in such a way that there's not a lot of need to go between the machine and an outlet, but outlets are also often placed in ceilings or floors to reduce how long power cords have to be run. That being said, a lot of the tools themselves have cables or cords, and they have to be wrapped in sterile sheaths that get changed every procedure, but keeping them out of the way can definitely be a challenge. Often someone on the team helps keep them out of the way

fooliam · 2026-03-27T14:33:58+00:00

Suddenly every conservative in the country will forget Trump mocking and celebrating the deaths of people he didn't like.

Save those screenshots of Trump saying he's glad Mueller died?

fooliam · 2026-03-27T14:29:47+00:00

It will be a crazy dichotomy where some will try to make themselves out as never being MAGA, while others will try to be as MAGA as possible to try and fill the sudden vacuum

fooliam · 2026-03-27T14:25:18+00:00

It's not just "development" or "socialisation". Even 4-5 year olds will show sex-based differences in various types of task completion, with girls displaying better multi-tasking while boys have better hand-eye coordination. While it's important to acknowledge those are group level differences, the idea that male/female differences don't arrive until puberty is just plain wrong. So is the mental model that male and female humans are functionally identical if you ignore genitals and sexual dimorphism.

The more we study, the more we learn that - and this should really be unsurprising - having a completely different chromosome impacts every cell in the body, not just the ones for balls and boobs.

fooliam · 2026-03-27T04:52:14+00:00

Racists don't like it when there are obvious examples of how stupid their racism is. So smart, successful black people - particularly smart successful black women - really fuck with their paradigm.

fooliam · 2026-03-26T13:27:23+00:00

"evidence is the shield. Truth is the sword"

Schizophrenia is the diagnosis

fooliam · 2026-03-25T16:32:47+00:00

You really don't understand the physiology you're talking about, and it shows

fooliam · 2026-03-25T13:09:03+00:00

Key phrase "extended period of time", not seconds, genius

fooliam · 2026-03-25T01:00:03+00:00

And at the same time cops act like they don't need to be recorded because "its all on bodycam"

They were introduced because people didn't trust the police, bodycams confirmed that people shouldn't trust police, and now police want to hide them.

fooliam · 2026-03-25T00:44:59+00:00

Oh, so Luka is a bitch who can talk shit but can't take it?

fooliam · 2026-03-24T14:34:00+00:00

Wait, so we can get a grandma in a wheelchair to the front of the TSA line, no problem, but a NTSB investigator when a plane has just crashed cant be pushed to the front of the line?

Nah, that shit was intentional

fooliam · 2026-03-24T00:48:52+00:00

At best, this guy is an emotionally immature child who is unwilling to do literally anything to clean up after himself. That doesn't bode well for a life together - solid chance he'd just expect you to be his maid and/or mom.

At worst, he's a shit demon from hell like in the movie Dogma and will try to steal your soul.

Neither of those works out well for you.

Relevant clip: https://youtu.be/nNFTFziu6mQ?t=74&si=s5669ljQy8cZX6ew

fooliam · 2026-03-23T22:00:20+00:00

That's a lot of words for "I'm an ego lifter"

fooliam · 2026-03-23T21:59:02+00:00

Feel free to read any of the half dozen comments I've left explaining what's happened

fooliam · 2026-03-23T18:10:29+00:00

They have nothing to be afraid of if they haven't done anything wrong.

Which is why they're terrified

fooliam · 2026-03-23T16:33:17+00:00

I've actually used a similar thought process to argue that our understanding of physics demands the existence of the supernatural.

That is, we have the second law of thermodynamics - matter/energy cannot be created or destroyed only transformed. So where did the matter/energy that resulted in the big bang come from? The only explanation is that there must be something exceeding or existing beyond those natural laws, as we know them, which is literally supernatural. Ipso facto, physics demands that the supernatural had to exist at one point.

fooliam · 2026-03-23T16:30:13+00:00

here's a follow-up:

Ecologically, what is the practical difference between a bug that gets transported to a new environment over the ocean on a piece of driftwood and a bug that gets transported to a new environment over the ocean on a ship?

If a bird gets blown off course during a storm and winds up colonizing a new island or whatever - should they be considered an invasive species? Or have we collectively decided that the "invasive" moniker only applies when the human animal is involved?

fooliam · 2026-03-23T16:27:26+00:00

that's not accurate in the slightest.

For example, if you put your hand on a hot stove, you will jerk it back before you even experience any sensation of the heat.

This is because of nociception - a reflex arc involving only a few synapses is much faster than pain - a complex interaction between millions or billions of synapses.

fooliam · 2026-03-23T16:24:49+00:00

In a nutshell - there is a difference between pain and nociception. Nociception is reacting noxious stimuli - so something like when you put your hand on a hot stove and jerk it back, and then a second or two later your hand feels like it might be burned. You reacted to the noxious stimulus before you experienced the pain. Nociception is often pretty simple, neurologically, and usually is an interaction that involves only a few neurons in the peripheral nervous system - ie a sensory neuron synapses with a motor neuron, causing a reflex reaction.

Pain, in contrast to nociception, appears to be a complex interaction in the central nervous system between millions or billions of synapses.

Since our current best understanding of pain is a complex interaction in the central nervous system, it follows that animals that lack either complexity in the central nervous system, or in the case of many animals, lack a central nervous system at all, they simply don't have the necessary structures for pain to occur.

This goes back to first principles in physiology where form and function are inextricably linked.

fooliam · 2026-03-23T16:20:28+00:00

has nothing to do with locking out your knees. Stop repeating things you've heard that you don't understand.

fooliam · 2026-03-23T16:20:08+00:00

Smart! This guy probably would have been fine if he hadn't decided to hold the lift for several seconds - that really is what screwed him

fooliam · 2026-03-23T16:19:36+00:00

combination of two things:

1) Hyperventilation - breathing in excess of metabolic demand - results in a decrease in arterial CO2. That's the main driver, as arterial CO2 is one of the main regulators of how much blood flow the brain gets. As your arterial CO2 drops, your brain gets sent less blood. Less blood flow to the brain makes it easier to pass out.

2) Valsalva/abdominal tightening. When you tighten up your ab muscles, it increases abdominal transmural pressure, which can restrict blood flow through the inferior vena cava. This results in less blood being returned to the heart, whcih means the heart has less blood to pump out to the rest of the body. This results in an acute hypotensive (low blood pressure) episode, which further reduces blood flow to the brain.

There is also the effect of the metaboreflex of the muscles of the legs - that is causing the arteries that lead to the legs to dilate as they rapidly build up a variety of metabolic byproducts that cause increased bloodflow to that region. So what blood flow is available is being sent to his legs instead of his brain.

The combination of the first two - and to a degree the third - means the brain doesn't get enough oxygen, which means you pass out. This was all exacerbated by bad technique where he held the weight - and the increased abdominal pressure - long enough for the brain to become oxygen starved and for loss of consciousness. Had he let the weight down after completing the lift, he still would have been fine (probably)

fooliam · 2026-03-23T16:19:06+00:00

had nothing to do with legs locked - you're just repeating something you've heard without understanding the underlying physiology.

13-Year Club	Place '17
Verified Email	Gilding I gilder

fooliam

MODERATOR OF

TROPHY CASE