Considering a medical alert device? Here’s what you should know before buying.

Question: I recently hurt my back and am unsteady on my feet. My husband continues to work away from the house, as do I when I can. I am concerned about needing help if I fall and no one is here to help. How do you know if you are ready for an emergency response device? And how do you go about selecting one? P.S. I am in my early 80s. — S.M.
Answer: Dear S.M. If you have concerns about falling and there is no one to answer your call for help, you might seriously consider getting an emergen