Can you post the rest of the readings?
Was the cat hot when you had it tested? It really helps to drive it hard for 10 or 15 minutes just before taking it in for the test.
Ask the shop to do a pre-test. If it fails the pre-test you can take it home to finish sorting things out without having an "official" test that may trigger the referee.
Post the readings if you can so we can have a better look.
