Question about my Lab Test.....Help Pls | Arthritis Information

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Question???

I go to the hospital lab tomorrow, they are open on Saturday, to have a list of testing done. Some are a repeat (Thyroid stuff is).

The Tests they are running are as follows:

 

TSH, T3, T4

RF

ESR

ATP Antibodies

ANA

Now, here is my question. Will the tests show a false reading if taken on a day when I don't feel so bad. For example. All week I have been in bad pain, and just feeling terrible. Today is not as bad as the rest of the week was. So if I go there tomorrow, feeling better than the week I have had, how will that accurately reflect my lab results. I mean if I have less inflammation in the morning than I did for example today, won't that give a bad reading? 

Does it really change daily with how you feel. Some of my days are terrible, some are not so bad but I just do not want results that do not properly reflect what I am going through and dealing with this nightmare

 

Any thoughts?

Thanks
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