Havn't read the full nitty gritty, but our Trust policy refers to MDA Safety Notice SN 9706.
As a general rule of thumb, Switch off as one comes into the Hospital and back on when one leaves.
They also have the capability to interfere with fire alarms, and with automatic response equipment I am sure the Fire Brigade are none to pleased to arrive and find that they have been sent on a fools erand by an idiot using a mobile.
As a footnote my school mate was in intensive care (The Brompton I believe), when half the ITU went crazy because of a moblie.
Finally if they don't take any notice call security and have them removed.
