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    Renal artery stenosis

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    Definition of Renal artery stenosis

    Renal artery stenosis is the narrowing of one or both arteries that carry blood to your kidneys (renal arteries). Narrowing of the arteries prevents normal amounts of oxygen-rich blood from reaching your kidneys. Your kidneys need adequate blood flow to help filter waste products and remove excess fluids. Reduced blood flow may increase blood pressure and injure kidney tissue.

    SOURCEMayo Clinic
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