this post was submitted on 01 Sep 2026
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You Should Know

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On OpenStreetMap, there's an emergency=defibrillator object. It can be tagged with information like opening hours (e.g. if it's inside a location that's only open certain hours), a description of the location ("at the front desk"), etc.

For example, on the Android/iOS app OsmAnd, you can select 'Defibrillator' as a point of interest (POI) Additionally, choosing 'Healthcare' POI type will show not just hospitals, clinics, etc., but also AED locations.

Other emergency devices, like emergency phones, are also mappable.


Why YSK: quick access to defibrillators can save lives and significantly improve quality-of-life outcomes. The more complete this data is, the more useful somebody can actually expect it to be in an emergency. Even if the data isn't queried during the emergency, seeing it on the map could help users know where they are ahead of time.

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[–] chris@l.roofo.cc 114 points 4 days ago (12 children)

You should also know that using them is not scary. You can't do it wrong if you follow the spoken instructions. It will not shock anyone if it's not needed.

Imidiately starting CPR and using an AED improves the survivability of a stopped heart manyfold.

If you need one you can just grab one from the nearest place. Don't bother asking. Don't be scared of doing something wrong. It's better than doing nothing.

[–] lonefighter@sh.itjust.works 31 points 3 days ago (1 children)

Caveat that it won't shock anyone they don't need to as long as that person isn't conscious or moving...

The AED doesn't shock people who are in asystole (flatline), contrary to popular myth. The point of shocking isn't to start the heart, it's "have you tried shutting it off and turning it back on again?" It shocks 2 rhythms, ventricular tachycardia (a type of very fast heart rate) and ventricular fibrillation (where the bottom part of your heart quivers but doesn't pump). It's possible to be alive and conscious in V tach, you can be pulseless and "dead" with V tach and you won't have a pulse with V fib. So if you apply it to someone conscious, there's a chance they could be in V tach and it will recognize that and shock them, killing them. It can also recognize movement as a shockable rhythm and deliver a shock improperly.

None of this should scare anyone from using an AED! If you have someone who isn't conscious, isn't breathing, and doesn't have a pulse or you don't know how to check for one, you can use an AED! Just don't put one on someone who is awake and having chest pain "just in case" and if you need to move someone that has an AED applied, don't do it while the AED says it is analyzing (you will know, it verbally says so and tells you to stop touching the patient!)

Go learn CPR! It is not hard, and you can save a life. Remember, if someone needs CPR you can't screw it up! They can't get any more dead, but you can make them better!

  • not a CPR instructor, but I do work in EMS :)
[–] Bluewing@lemmy.world 8 points 3 days ago (1 children)

Well written and well explained! I knew just by reading your first sentence that you have or are riding in the back of the bus. From an old and thankfully retired medic - Glove up, be safe, and have fun out there! And who knows, your next page might be the coolest trauma ever!

I will add one bit of data for people to think about. If you witness an arrest and you immediately start CPR, patient survival rates are around 35%. I know that doesn't maybe sound all that good. But if you wait for me show up in my amp-a-lamps with the woo woos and flashy flashies, then patient survival rates drop to less than 9%. It's all you bystanders that save more lives with CPR than we do.

And if you ever need to do CPR, you go all in and do it like you mean it!

[–] lonefighter@sh.itjust.works 5 points 3 days ago (1 children)

Thank you! I hope you're enjoying your retirement! I'm currently an Advanced EMT working my way through that unique hell that is paramedic school :)

[–] Bluewing@lemmy.world 7 points 3 days ago

You got this! A paramedic is just someone that's really, really good at EMT-B skills with a few extra toys.

[–] EditsHisComments@lemmy.world 43 points 3 days ago* (last edited 3 days ago) (3 children)

I'm CPR trained with many recerts over the years. AEDs do everything for you, you just have to apply the pads in the correct spot (every AED has a visual diagram) and press the big button. They're intentionally designed to be easy to use now.

Also, get CPR certified. Takes an hour or two at most and you could save a life.

[–] altphoto@lemmy.today 19 points 3 days ago (1 children)

Taps you on the shoulder...! Hey hey buddy are you okay?!!! No response... proceeds to CPR. No response...you! Get me the AED!!!...continues CPR....you! Call 911!!!... continues CPR.

[–] EditsHisComments@lemmy.world 24 points 3 days ago* (last edited 2 days ago) (1 children)

To anyone reading this, this is actually what you do in a situation where there are people around. Due to the bystander effect, you have to call out to specific people to do these things.

CPR only works if it's consistent, and you can't stop until EMTs arrive. After you command people to do these, you ask if anyone else is trained in CPR. Not knows. Trained. And then tell them to sit across from you so they can take over if you exhaust yourself. CPR is tough if you do it right, but you're keeping someone from dying.

Edit: To clarify, the trained portion is for legal liability. If you're trained, your legal liability goes way down if something goes wrong.

[–] Tar_alcaran@sh.itjust.works 11 points 3 days ago (1 children)

CPR only works if it’s consistent, and you can’t stop until EMTs arrive. After you command people to do these, you ask if anyone else is trained in CPR. Not knows. Trained.

Buuuut, don't be afraid to do it wrong if nobody is available. Shitty halfbaked CPR is still better than just standing there doing nothing. And the people at the emergency services will absolutely talk you through improvising it.

[–] vaionko@sopuli.xyz 5 points 3 days ago (1 children)

Like I was told in the military: having a broken ribcage and being alive is better than being dewd with an intact ribcage.

[–] charles@lemmy.ca 2 points 2 days ago

As many paramedics and CPR instructors have repeated "can't be deader than dead".

[–] Tar_alcaran@sh.itjust.works 5 points 3 days ago

The last AED I used in training even kept rythm and count of the CPR!

[–] BartyDeCanter@piefed.social 14 points 4 days ago* (last edited 4 days ago) (1 children)

Completely agreed! I've used a few in practice sessions and they are quite easy. The one thing to be aware of is that you do need to get the sticky electrodes in the right place. There is a simple diagram showing where they go. But you will need to get under their shirt and bra to place them, so make sure you're not pulling down a strangers clothes for the wrong reasons.

[–] Hazor@lemmy.world 6 points 3 days ago

But also, please rip off my shirt if it might save my life. I'd rather be immodest than dead.

[–] HerbGrower@slrpnk.net 9 points 4 days ago (2 children)

Depends where you live. Pretty sure here you need a code to open it which you can get while calling for an ambulance and they direct you to the nearest one.

[–] cynar@lemmy.world 12 points 4 days ago

It's a mix here. Those in private businesses tend to be open and easy to grab. The ones in a box on a street corner are code locked.

I suspect it makes sense. The slight delay would be fairly minimal. You are likely on the phone to emergency services already.

It's quite effective at stopping people messing with them however. Unfortunately, it only takes a few idiots to ruin things. Both thieves and bored teenagers could take an interest in them, and render them useless. A simple code lock makes it clear it's not to be touched without need.

I've not looked closely enough to see if any have a "break glass" type access system as well.

[–] Tar_alcaran@sh.itjust.works 6 points 3 days ago (1 children)

Can't really speak for most places, but here in the Netherlands, you can sign up for a service/app that alerts nearby CPR-certified people when there's a call. It will tell you to either go to the location, or grab an AED first and then go. If you need a code/key/whatever, that's also listed.

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[–] MonkderVierte@lemmy.zip 3 points 2 days ago

Also, if you find points missing, please add them.

[–] chmod755@feddit.org 3 points 2 days ago (1 children)
[–] deltapi@lemmy.world 2 points 2 days ago (1 children)

How often is a battery replacement required?

[–] GoTeamBoobies@lemmy.world 2 points 2 days ago (1 children)

4 years is what ours is rated for

[–] deltapi@lemmy.world 1 points 22 hours ago

That is better than I expected. I served as a first responder for a decade and ours were good for 2 years - but ours got used often enough on critical cases that they had to be sent out for data readouts, and we almost always got newer batteries back than what we sent. During my tenure I don't think we actually did an actual battery replacement as a result.

[–] mak_sim_mak@lemmy.world 24 points 3 days ago

Organic Maps for Android and iOS shows defibrilators on map. Just search for "aed".

[–] danekrae@lemmy.world 30 points 4 days ago* (last edited 4 days ago) (1 children)

@TheTechnician27@lemmy.world YSK that because of this post, I finally signed up a OSM account.

CoMaps makes it easy to add stuff.

PS: People in my area are apparently really good at mapping AED's.

[–] schnurrito@discuss.tchncs.de 10 points 4 days ago (5 children)

OSM mapping can be very fun, I started doing it more than half my life ago. :D Not just defibrillators, but lots of other things too!

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[–] RobotToaster@mander.xyz 14 points 4 days ago (4 children)

MapComplete has a specific theme for mapping them

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[–] mastod0n@lemmy.world 2 points 2 days ago

So to anyone with experience: we have one at each company branch but they're behind your Gates. Would it still make sense to mark them from a first responder perspective even though you have to ring at the gate and explain your situation to gain access?

[–] Ertain@feddit.online 8 points 4 days ago

Thanks for telling me. Better start mapping those places with defib units.

[–] bloviate@lemmus.org 7 points 4 days ago (2 children)
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