depends on location being scanned. allowed to keep it for lower back. Have been warned that will be completely non reliables afterwards for usually a period of an hour afterwards, sometimes it can take upto couple of hours before accuracy becomes within its usual error margin. very very occassionally it may come off. putting on libre sod fingerpricks for the timebeing. replacement being sent out for the libre sensor that was dead on arrival

will see how long takes to get here... i'd bet wednesday... when have the mri scan ;o bright side 8:30am so should be in and out of hospistal pretty quickly and should be relatively ok finding a parking spot at that time of day