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ZRT labs blood-spot tests

Discussion in 'Ask Jack' started by ealachan, Sep 7, 2012.

  1. ealachan

    ealachan New Member

    Hi Dr. K -

    Are the blood-spot tests that ZRT labs (and probably others) offer actually worth the money in your opinion, or are they inaccurate enough to just be a waste?

  2. Jack Kruse

    Jack Kruse Administrator

    depends upon your case. If you are looking at vitamin D i am not so sure they are accurate but the hormone assays they have been close.
  3. zrt blood spot is quite accurate but remember is only s snapshot of the particular time of draw
    try to do after 10am i would suggest for hormones
  4. Josh, why do you say after 10 am with hormones?

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