CASE REPORT


False Positive Troponin I Rendering Two Admissions for “Recurrent Acute Myopericarditis”



Rita Marinheiro*, Pedro Amador, Leonor Parreira, Quitéria Rato, Rui Caria
Cardiology Department, Centro Hospitalar de Setúbal, Setúbal, Portugal


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Creative Commons License
© 2018 Marinheiro et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Cardiology Department, Centro Hospitalar de Setúbal, Setúbal, Portugal Rua Camilo Castelo Branco, 175, Praceta Manuel Nunes de Almeida, nº34 - 8º F. 2900-481 Setúbal; Tel: 00351 915261270; E-mail: ritamarinheiro@gmail.com


Abstract

Introduction:

Since there are many manufacturers of cardiac troponin I assays, the true incidence of a false positive result is unknown. The authors report a case of an 18-year-old patient with previous history of recurrent myopericarditis and admitted to hospital twice again with a suspicious of myopericarditis.

Conclusion:

Troponin I was found to be a false positive and alkaline phosphatase interference was proved to have been the responsible for this.

Keywords: Troponin I, Assay, False positive, Myopericarditis, Alkaline phosphatase, Echocardiography.