Hello Ardbeg,
It is impossible to use again, as IanS and others have explained. As Joper has stated in her reply, I can remember when the blood glucose meters first came widely available. My doctor at the time only give me 50 test strips at a time, and as you had to make a appointment with him to get a prescription, it was a pain to say the least. The tubes which the test strips came in were colour coded (as some are now) each colour representing a value of the blood glucose level which to compare your test results against. So, what I would do was cut the test strips in half, so that 50 strips bacame 100, you couldn't use the them in the meter unless they were whole, but as the meters were big and clumsy, I much prefered this method anyway. And yes Joper, the batteries were around £8 a time to buy, the meter company's then didn't provide free batteries as they do now.
I don't think you can do this with modern test strips, plus it wouldn't be advisable to do so. Hanadr, I too remember well when I was first diagnosed, the urine testing kits which were given at the time, dreadful things, thank god things have moved on!
Regards
Nigel