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RimWorld => Ideas => Topic started by: NobleRambler on May 25, 2017, 05:52:53 PM

Title: Battlefield CPR
Post by: NobleRambler on May 25, 2017, 05:52:53 PM
A suggestion as you start work toward A18:
For those of us who care for our pawns  ;)  how about the ability to perform battlefield CPR (leaving a pawn with the deceased performing CPR amid the battle) while a doctor rushes the paddles/resuscitator to revive (within a small time limit) to stabilize before transporting to a hospital bed? Some won't make it due to the danger of the remaining battle, but it would make for quite dramatic and realistic rescue missions, and a reason to keep spare organs on ice.


Moderator's edit (Calahan) - This was originally posted in the A17 feedback thread, but it is a suggestion and not feedback, so it was moved to the suggestions forum.
Title: Re: Battlefield CPR
Post by: Lord Of Darkness on May 26, 2017, 09:23:46 AM
this would allow me to take more risks when raiders attack.
Title: Re: Battlefield CPR
Post by: Boston on May 26, 2017, 09:34:51 AM
-sigh-

All CPR does is circulate blood.

If someone is dead from battle-injuries, doing CPR on them and attempting to resuscitate them won't do anything
Title: Re: Battlefield CPR
Post by: minimurgle on May 26, 2017, 09:49:32 AM
Yup it's exactly as Boston said. CPR circulates blood and oxygen around the body to keep it alive. It's not meant to restart the heart. And defibrillators also don't restart the heart. They temporally stop it to bring it back to  a normal heartbeat.
Title: Re: Battlefield CPR
Post by: OFWG on May 26, 2017, 12:28:19 PM
In reality death is almost always more like being downed and then fading away than the instant off switch that the game has. I personally think OP's idea would be kind of fiddly but it shouldn't be dismissed as nonsensical (especially with a condescending -sigh-) :)
Title: Re: Battlefield CPR
Post by: Limdood on May 26, 2017, 03:16:42 PM
I'd much rather get the "save the colonists" effect by having almost EVERY pawn get downed and make the blood loss rate ramp up much faster.

The pawn with 17 gunshot wounds to the legs, arms, torso, and neck might not be dead, but there's no WAY you're getting him before he bleeds out in the 5 in-game minutes it would take him to die.

On the other hand, a sniper shot to the chest that pierces and kills a lung, but "reduces torso hp to 0" currently kills a pawn dead instantly, and it feels like that kind of injury should DEFINITELY be more treatable.

Obviously destroyed spine, brain, head, neck, or heart would still have to kill a pawn right away (i'd like liver to not be instant death....make having a liver on ice a bit MORE useful)
Title: Re: Battlefield CPR
Post by: Britnoth on May 26, 2017, 07:51:49 PM
You can already treat pawns in the field by placing a sleeping spot and changing it to medical, though. :P
Title: Re: Battlefield CPR
Post by: OFWG on May 26, 2017, 08:27:01 PM
Quote from: Britnoth on May 26, 2017, 07:51:49 PM
You can already treat pawns in the field by placing a sleeping spot and changing it to medical, though. :P

Not if they're dead. OP's suggestion is to be able to resuscitate the recently deceased.
Title: Re: Battlefield CPR
Post by: Britnoth on June 06, 2017, 05:45:28 AM
80% pain knocks the pawn unconscious. You can still rescue and treat them in the field.

Is this seriously a suggestion that dead pawns aren't really dead?  ::)
Title: Re: Battlefield CPR
Post by: SpaceDorf on June 06, 2017, 07:04:33 AM
Quote from: Britnoth on June 06, 2017, 05:45:28 AM
80% pain knocks the pawn unconscious. You can still rescue and treat them in the field.

Is this seriously a suggestion that dead pawns aren't really dead?  ::)

Well .. nobody stays dead in comics :-D ( except uncle Ben )

And my suggestion would also have been to use medical sleeping spots, in combination with no meds or a nearby stockpile them. This setup has saved many pawns of mine who would have not survived the battle.
It is also a good way for prolonged battles away from your base. Retreat wounded pawns, slap on some bandages, some food, drugs if needed, and get him back in line.
( also this is how non-combatants can be usefull in a fight without wearing a shield )

If I ponder this further .. if you can pop them a luci pill fast enough .. ( an ingame hour before brain death ) .. maybe you could revive them.
Title: Re: Battlefield CPR
Post by: RemingtonRyder on June 06, 2017, 08:23:50 AM
If you're going to have defibrillation and CPR then you'll probably need a more accurate simulation of pawn hearts.

The reason why defibrillation doesn't work when a patient is flatline is because there's no rhythm that the shock can reinforce any more. In those cases, adrenaline is usually administered to attempt to re-assert a rhythm, but recovery is far less likely than in the cases where there was still some kind of heart activity.
Title: Re: Battlefield CPR
Post by: Fregrant on June 06, 2017, 08:40:27 AM
Yeah, defibrilation of bullet-enriched body is quite pointless, unlike Hollywood movies.
https://www.quora.com/How-do-paramedics-restart-a-heart-Why-is-this-a-delicate-process
Title: Re: Battlefield CPR
Post by: SpaceDorf on June 06, 2017, 09:05:37 AM
Quote from: Fregrant on June 06, 2017, 08:40:27 AM
Yeah, defibrilation of bullet-enriched body is quite pointless, unlike Hollywood movies.
https://www.quora.com/How-do-paramedics-restart-a-heart-Why-is-this-a-delicate-process

As a worst case ? Could this magnetize the bullets ?
Even depending on the material of the bullet we are running a current through something metallic ?
Title: Re: Battlefield CPR
Post by: RemingtonRyder on June 06, 2017, 09:26:33 AM
Defibrillation is nothing like powering up an electromagnet.
Title: Re: Battlefield CPR
Post by: SpaceDorf on June 06, 2017, 12:02:23 PM
I know .. I was not referring to that special case of shrapnel management.
I was thinking about sending a small, directed lightning bolt through a lump of meat.

But within this picture. If said lightning bolt passes through a small metal object embedded in the meat, could this small metal object be magnetized in a measurable way so it is attracted to other small pieces of metal nearby or not ?

I have no clue about the charge used in this kind of medical equipment. So explain away :)
Title: Re: Battlefield CPR
Post by: RemingtonRyder on June 06, 2017, 12:20:55 PM
Nope.

Electromagnetism works because you send a current through a conductor which is coiled around a core. In order to move something, the current ideally needs to be constant.

A defibrillator delivers a pulse or set of pulses instead of a constant current, and there are no coils or cores.

Also, magnetic extraction of bullets isn't really as great an idea as you might think it is. Quite often, bullets fragment or lodge near blood vessels, which is why you need to first determine if they can even be removed safely, and then you're looking at delicate surgery rather than yanking them out the most direct route.
Title: Re: Battlefield CPR
Post by: SpaceDorf on June 06, 2017, 12:58:08 PM
I never implied that removing bullets with electromagnets is a good idea.

I was curious about the worst case scenario of running an unknown ( to me ) amount of power through a person filled with an unknown amount of metal.

Also I was not referring to electromagnets at all.
I was referring to the property of some metals ( mostly Iron as I recall ) to become magnetized ( electrons being forced in a singular direction ) for a short amount of time after being exposed to a magnetic field or current running through them.
And bullets being made from all kinds of metal .. who knows ..
Title: Re: Battlefield CPR
Post by: RemingtonRyder on June 06, 2017, 01:10:15 PM
As I said, defibrillators deliver a pulse or pulses. These pulses are fairly short, because the goal is not to cook the entire chest cavity with electricity, but rather to cause a particular reaction in the heart. ;)

Anyway, with the pulses being short and controlled, I doubt there's much time for magnetism to take hold, much less for a bunch of them to start attracting to each other.
Title: Re: Battlefield CPR
Post by: SpaceDorf on June 06, 2017, 01:55:56 PM
You are no !!FUN!! at all :)

I officially admit I am tired and full of shit today ..

WHAT IF, .. a semi-conductive material ( flesh for example ) is interlaced with a highly conductive material ( maybe bullets )
would this then block the flow of the defibrilator pulse if the current was applied in the wrong direction ?
Title: Re: Battlefield CPR
Post by: Kramoliun on August 20, 2019, 07:28:12 PM
i know nobody will answer, but just to point. CPR does revive people, it is to stimulate the hearth to restart again after cardiac arrest and keep the brain alive, or else medics, paramedics and lifeguards wouldnt administer it on clinically dead victims, it saves lives. defibrillators are to regulate the heartbeat, when it is beating but is too weak or irregular, a defibrillator or AED administers a shock to try to correct the heartbeat back to normal.
drugs are also administered to stimullate the heart and lungs, mouth to mouth and ambu bags provide the O2 to the lungs to keep the blood with oxigen.
so, yeah. cpr does revive people
Title: Re: Battlefield CPR
Post by: Kirby23590 on August 22, 2019, 05:30:09 AM
Though i'm not sure if CPR would work in Rimworld's universe gameplay-wise.

Since after bringing them back up would mean that they are still bleeding to to death and might die from blood-loss.

Unless they were beaten by blunt weapons or knocked out cold, CPR would make sense, kinda...

I think i would go for Defibrillators or a Resurrector mech serum though. Since a simple shock and electricity to the heart to wake it while the guy is still unconscious will bring him back up of course. Before he bleeds to death.

CPR Works IRL, Gameplay-wise i don't know if that could counter bleeding to death. So i'm going with Defibrillators.