Doodles tested at 323

just did my first night home test and she tested at 323 +4. I did it once and got an error reading, so I did again it read 327, so I did it again and it read 323 is this normal? Can you tell I'm a newbie? haha
I'm confused as to what I should do tonight any suggestions? Doodles seems fine she's laying behind me on her table as I worry.

 

Is Doodles on insulin?? I've only been dosing for a short time, so I can't give you intelligent advise there, since going on insulin Tandy's numbers usually range from 100-200. A BG of 323 was normal when she was on Glip, so that seems to me to be a bit high for a kitty on insulin. Also, are you feeding canned or dry food? Dry food will adversely affect Doodles numbers.
People with more experience than me should be chiming in soon to offer better advise.