I'll give you a real-time on the spot example of a small town medical issue.
Woke up at midnight with pulse varying 29-43 trace line on machine looks like skys****e profile of Grand Tetons. No there is no hospital here. Nearest is 130 miles a dangerous drive with a cataract.
O2 pulse oximeter (mine) reveals blood O2 between 89-96. So what do I do? Monitor. BP is OK at 150/82. A person just cannot come down here and not plan. In my case the BP cuff and pulse oximeter lets me know when or if things get dangerous. When my pulse decreased to 29 that was cause for concern. Yes this is happening NOW.
A person should not IMHO move to Mexico if they have serious health issues unless they spend time and so some serious research into the issue. In my case I have a different heart issue called atrial fibrillation which is controlled. This low and erratic pulse needs to be discussed with a cardiologist next month when I go north. I am not at all comfortable with this. But because I studied arrthymia issues in general I know the brief bouts of blood O2 into the high eighties is not worrysome if it lasts 15 seconds or less. I deep breathe and O2 increases to around 95 or so.
This is NOT fun as I feel crummy as hell. But I am not at the mercy of ignorance. The drift of this post is...
Mexico is NOT the place to.come unless a person wants to spend a little time learning aboit their senior health issues. If my heart No 3 nerve bundle decides to deteriorate into full heart block the braccycardia issue of ultra slow heartbeat will cause problems tring to drive back to the border. So it'll be bus time -24 hours worth.
I hope some of you got something worthwhile out of this. Time to don the bi-pap mask and try and sleep. I may end up with a pacemaker next month. Oh joy.