So using this to show the oxygen saturation after someone has just taken SN is of no use? I thought we could watch, if for example someone was watching it live, and see the oxygen saturation as it dropped at least. And also, we would see the pulse rate.
Obviously it wouldn't confirm death, but in the past on this site people, not me but others, have watched on a live stream as someone drank SN. Then wondered what exactly was happening.
And just to clarify this, before anyone gets horrified by someone watching someone die, I am referring to close friends. Someone did not want to die alone and had a close friend here. They requested not being alone, as well as wanting to help others with any information they could provide. As far as I know, the friend watching did not know the person in real life or their name or exact location so could not have saved them, or prevented them from doing what they did.
So the only purpose of the pulse oximeter being worn was to provide some information about the physiology of drinking SN. This is something many here have done, without much to go on as far as knowing exactly what may happen.
I have seen a couple of times when people were outraged that anyone would watch someone die. I hope I have explained it so people understand it's not out of wanting to see death, it's out of compassion for not letting someone die alone who requests a friend be with them remotely, and could not under the circumstances prevent it from happening.