Aproximación clínica al consumo de sodio

Leonella Luzardo; Mariana Sottolano; Inés Lujambio; José Boggia; Anna Barindelli; Oscar Noboa

Authors

Leonella Luzardo Universidad de la República, Facultad de Medicina, Hospital de Clínicas, Departamento de Fisiopatología. Asistente
Mariana Sottolano Universidad de la República, Facultad de Medicina, Hospital de Clínicas, Departamento de Fisiopatología. Ayudante de Clase
Inés Lujambio Universidad de la República, Facultad de Medicina, Hospital de Clínicas, Departamento de Fisiopatología. Ayudante de Clase
José Boggia Universidad de la República, Facultad de Medicina, Hospital de Clínicas, Departamento de Fisiopatología, Profesor Adjunto. Centro de Nefrología, Asistente
Anna Barindelli Universidad de la República, Facultad de Medicina, Hospital de Clínicas, Departamento de Laboratorio Clínico. Profesora Adjunta
Oscar Noboa Universidad de la República, Facultad de Medicina, Hospital de Clínicas, Centro de Nefrología. Profesor Agregado

Keywords:

DIETARY SODIUM CHLORIDE, NATRIURESIS

Abstract

Introduction: sodium consumption is closely related to blood pressure rates and it additionally affects the handling of different diseases. In 2003, the World Health Organization (WHO) encouraged people to reduce the consumption of sodium to under 5 g/day. In Uruguay there is no data resulting from direct measurement of sodium consumption. Measuring sodium in the 24 hour urine is the standard method to determine daily consumption, although this method is rarely used in the clinical practice due to its being bothersome for patients.
Objective:to determine sodium consumption for a group of volunteers through 24 hours natriuria. To find a relationship between spot tests of urine natriuria and 24-hour urine natriuria.
Method: fourth year medical students were recruited from the School of Medicine at the University of the Republic. Medical history, anthropometric measures and blood pressure in the polyclinic were recorded and the urine was collected during 24 hours. The analysis of the relationship between the content of sodium in the spot and in the 24- hour urine was performed through square chi.
Results: 33 out of 45 students completed the study. Average consumption of sodium was 2.9 2,9±1,1 g/day. Natriuria in the spot greater than 75 mEq/L was associated to sodium consumption measured by 24-hour natriuria greater than 100 mEq/día (p<0,005), with a sensitivity of 95% and a specificity of 63%.

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