Correction: Quantification of Dialytic Removal and Extracellular Calcium Mass Balance during a Weekly Cycle of Hemodialysis.

Jacek Waniewski,Andrzej Ksiazek,Wojciech Zaluska,Alicja Wojcik-Zaluska,Malgorzata Debowska

doi:10.1371/journal.pone.0193604

Abstract

[This corrects the article DOI: 10.1371/journal.pone.0153285.].

Highlights

The first error occurred in the identification of the mode of ion selective electrode that was applied for the measurements of calcium ion concentration as the indirect mode instead of the direct mode
In the “Patients and clinical data” subsection of the Methods section, the sixth sentence of the second paragraph should read: Concentrations of total and ionized calcium were measured in serum before, at 1, 2 and 3 h, at the end and 45 min after each session, before the fourth dialysis session and in the outlet dialysate every 0.5 h
Ã statistically significant difference vs. patient with weekly removal of calcium from body a the removed mass for complexed calcium was measured in dialyzer, but its ECC was only estimated based on the average physiological value of complexed calcium in plasma for healthy individuals [17]

Summary

Introduction

The first error occurred in the identification of the mode of ion selective electrode that was applied for the measurements of calcium ion concentration as the indirect mode instead of the direct mode. In the “Patients and clinical data” subsection of the Methods section, the sixth sentence of the second paragraph should read: Concentrations of total (by calorimetric method with Arsenazo, Advia 1800, Siemens) and ionized (by ion selective electrode and potentiometry direct mode, RapidLab 348, Siemens) calcium were measured in serum before, at 1, 2 and 3 h, at the end and 45 min after each session, before the fourth dialysis session and in the outlet dialysate every 0.5 h.

Results

Conclusion