I’ve had two DVT blood clots in my left leg. One in 2009 the other in 2015. Luckily they were discovered before doing any damage and now I’m on a blood thinner (Eliquis) for life. I haven’t had another clot since. So Betty should be ok if she takes her meds. I hope she’s not taking Coumadin/Warfrin. That stuff is nasty. Get well soon...🐟on