Masking by malnutrition.
D001806:Blood Urea Nitrogen; D003401:Creatine / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism; D005919:Glomerular Filtration Rate; D006801:Humans; D007677:Kidney Function Tests; D009748:Nutrition Disorders / Q000209:etiology*; D011488:Protein Deficiency
D004044:Dietary Proteins; D003401:Creatine