Thanks a lot coco...I have a home cuff and calibrated it against the Urgent Care and it was within a few points. It read 118 / 76 before I went to doc and I am wondering if they used too small a cuff on me.... You would hope not. My machine has been pretty reliable. I am going to check it against my friends cuff tonight. Chances are the docs was right but not sure why mine is so off all of a sudden