Erratum: Concordance and limits between transcutaneous and arterial carbon dioxide pressure in emergency department patients with acute respiratory failure: a single-center, prospective, and observational study

Introduction Transcutaneous CO 2 (PtCO 2) is a continuous and non-invasive measure recommended by scientific societies in the management of respiratory distress. The objective of this study is to evaluate the correlation between PtCO 2 and blood pressure of CO 2 (PaCO 2) by blood gas analysis in emergency patients with dyspnoea and to determine the factors that interfere in this correlation.