I have not had to deal with this personally as both my parents are not in my life.
Unfortunately I deal with this quite often professionally. It is very difficult to even get the real location where they are at when they call, as a lot of times they regress to previous homes and places they live. They can forget both who and why they called, and sometimes they call about a problem they had yesterday or even years ago. I am still debating creating a class for other professionals how to handle calls from the very young and the elderly folks since they are often very similar in how you manage those calls.
This would be a project I would be very interested in. Since EMT's are in the home frequently early in family care or when self care starts to decline there are a number of opportunities to do public education and even prevention of several "problems" by encouraging patients and caregiver to attend a class to earn a discount coupons for those first "rides" to the hospital which often happens before they have enough insurance coverage to not have substantial out of pocket.
I am thinking about writing something for family caregivers now that I have some time. Maybe even doing some teaching videos for caregivers or how Families of one can prepare for their own emergencies.