Fallacies and Pitfalls of Dialysis Sodium Prescription and Control
Language English Country Switzerland Media print-electronic
Document type Journal Article
PubMed
29649799
DOI
10.1159/000484921
PII: 000484921
Knihovny.cz E-resources
- Keywords
- Conductivity cell monitoring, Dialysate conductivity, Dialysate sodium, Dialysate sodium correction, Dialysis sodium prescription,
- MeSH
- Renal Dialysis MeSH
- Dialysis Solutions chemistry MeSH
- Electric Conductivity MeSH
- Humans MeSH
- Inappropriate Prescribing MeSH
- Sodium analysis standards MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Dialysis Solutions MeSH
- Sodium MeSH
Dialysate conductivity is routinely used as a surrogate for dialysate sodium concentration. However, dialysis machine manufacturers apply different conductivity temperature correction coefficients. With the same conductivity in dialysis machines manufactured by different manufacturers, dialysate sodium may significantly differ. Also, electrolyte prescriptions are individualized (K, Ca, HCO3) and this is associated with another variation in dialysate sodium in the order of 1-5 mmol/L and both deviations are cumulative and chronic for each patient. Equivalence of the prescribed dialysate sodium and the concentration measured in it is not granted. Both variables differ and it is machine dependent! This paper analyses those variations from a technical point of view and suggests how to detect them and how to deal with or avoid them in clinical practice.
Charles University Medical School 1 Institute of Biophysics Prague Czech Republic
Cliniques Universitaires St Luc Renal Unit Brussels Belgium
Department of Medicine General University Hospital Prague Czech Republic
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