Hi guys, thanks for the input. It just seemed a bit strange to me. Come to think of it the lab has a set range for TSH but that's come up as UNKNOWN. Ah well, probably nothing to worry about. The clinic I go to has changed their computer systems so I don't think I'll be seeing any more of the UNKNOWNs again!!
Thanks x
it probably means the lab doesn't have a set normal range
I agree with mkh9 I think it's a glitch in the printing of the lab results. This is what you pay the doctor for :).
I have worked in the lab for many years (in various labs) and haven't seen that. I guess I would ask your doctor or call the nurse on the phone. It may just be a glitch on the lab printout.