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Results 1 - 2 of 2 for Blood urea nitrogen
  1. Kidney Tests (National Library of Medicine)  
    You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. Your kidneys filter and clean your blood, taking out waste ...
    https://medlineplus.gov/kidneytests.html - Health Topics
  2. Urine and Urination (National Library of Medicine)  
    ... water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, ...
    https://medlineplus.gov/urineandurination.html - Health Topics