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Keeper-of-the-Keys / cpr-metronome

CPR Metronome for SailfishOS
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Request for extra info / functionality #1

Open cow-n-berg opened 1 month ago

cow-n-berg commented 1 month ago

This app is a very good and sympathetic idea!

Thinking back to my CPR training five years ago, I see some differences. Basically I'm too lazy to look it up elsewhere... We learned to give CPR for some time, then change to mouth breathing, then back to CPR. It would be wonderful to add this to the metronome.

Do you wish to educate people? I found this relevant for my expectations. As CPR is tiresome, you hope for rescuers to arrive soon. In NL, the police is supposed to arrive first. Two professionals to relieve you. Then a team of firemen should join and the the ambulance.

Finally some remarks. The metronome has a different pace sometimes, must be something with the equation 190/60. The screen will blank after a minute. Non-blanking may be better when the pressure is on.

Thanks!

Keeper-of-the-Keys commented 1 month ago

Hey @cow-n-berg

Thanks for the feedback!

mouth breathing is not recommended anymore by the AHA and I think also not in Eurpean guidelines for 2 reasons:

  1. It is very hard to get right and leads to long interruption to compressions especially for laymen rescuers.
  2. It is dangerous to the rescuer due to the health risk of exposing oneself to the biome of the mouth of the victim (thus when we were trained they taught us and said only do this for your immediate family).

Studies have found that hands only CPR until the arrival of trained and equipped personnel seems to lead to better survival, the only caveat to this are hypoxic arrests (eg. drowning, chocking) where breathing support from the get go can make a big difference.

If there is a sufficient need in our small SFOS community I may add BLS/ALS modes to switch CPR mode from hands-only to 30:2/15:2 and medicine/event tracking but right now as far as I'm concerned this is mainly aimed at lay CPR.

I do want to add a silence mode (for when the AED provides a metronome and you just want the times to continue being tracked) and tracking shocks in later versions.

CPR is absolutely a solid workout and it is important to switch early when you feel you are tiring, don't be a hero.

The equation is indeed very annoying and the timer loop much shorter than I'd like it to be, maybe I should just switch to 120bpm which would make everything a lot nicer.

HTH!

Keeper-of-the-Keys commented 1 month ago

TODO from this PR:

  1. Consider switch to 120BPM
  2. Figure out how to prevent screen blanking.