Mum had a fall and broke & dislocated... Mum had a fall and broke & dislocated her hip - was on the floor for over 4 hours before she was able to call for help. Six weeks later, she now wears a monitired Medialarm constantly and yes, there have been a few false alarms, I feel better with mum being alone at home as I know the team will talk to her or ring me if there are any perceived problems.