A Comparative Evaluation of Sodium and Potassium Measurements by Flame Photometer and by Direct ISE Methods

Introduction: Electrolyte measurement is very crucial especially for critical patients, but there is lot of apprehensions regarding the reporting of electrolyte owing to different methods used for electrolyte estimation. The study tries to draw an agreement in the sodium and potassium measurement by conventional flame photometer (NFP 460) and much advanced direct ISE (Vitros 350). Methods: 131 samples were analysed for sodium and potassium by flame photometer (NFP 460) an