Abstract
We assessed the relationship between protein intake (calculated from a 3-day prospective dietary diary) and 24-h urinary urea excretion in 37 children with chronic renal failure. Protein intake was not restricted during the investigation period. The 24-h urinary urea excretion correlated poorly with the protein intake estimated from the dietary diary (r=0.58). We conclude that although it is common practice to assess compliance with a protein-restricted diet in children with chronic renal failure with a dietary diary and 24-h urinary urea excretion, the value of this assessment is questionable.
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Kist-van Holthe tot Echten, J.E., Nauta, J., Hop, W.C.J. et al. Protein intake can not be estimated from urinary urea excretion. Pediatr Nephrol 6, 85–87 (1992). https://doi.org/10.1007/BF00856848
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DOI: https://doi.org/10.1007/BF00856848