Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) renal hypouricemia ?
    ### Response:
    Renal hypouricemia is a kidney (renal) disorder that results in a reduced amount of uric acid in the blood. Uric acid is a byproduct of certain normal chemical reactions in the body. In the bloodstream it acts as an antioxidant, protecting cells from the damaging effects of unstable molecules called free radicals.
    