conditions of the sphygmomanometers used at the Itajubá school hospital. METHOD: A quantitative, observational, cross-sectional study was performed with data collection of all aneroid and mercury sphygmomanometers from the institution, excluding those that were not in use or not belonging to the School Hospital. The analyzed variables were: Identifcation, Gauge, Clamp, Pear, Defation valve, Air exhaust, Measured pressure measurements and Calibration. RESULTS: Of the final sample of 76 sphygmomanometers, were unbalanced 76 sphygmomanometers, of which 56 (73, 7%) were of the aneroid type, 12 (15.8%) of the wall, 6 (7.9%) of the mobile column and 2 (2.6%) of mercury column, of the marks was predominant sphygmomanometers of the mark 1, with 30 (41.7%). Most of the analyzed sphygmomanometers had a serial number of 98.7% and a number of Inmetro 75%. A clamp-type relationship with calibration prevalence was found, with velcro clamps being 6 times more likely to be calibrated than clamp-type. CONCLUSION: The analysis was satisfactory in relation to the quality, calibration and general state of the apparatus, with new analyzes necessary for other variable variables to obtain a good blood pressure measurement. Key words: Calibration; Sphygmomanometer; Blood Pressure © 2018 The Author(s). Published by ACT Publishing Group Ltd. All rights reserved. Silva PC, de Faria RS, Sallum AG, de Alcantara Sousa LV, Valenti VV, Cortez PJO. Analysis of Mercury Sphygmomanometers in A Hospital School-Analysis of Mercury Sphygmomanometers. Journal of Cardiology and Therapy 2018; 5(1): 697-700 Available from: URL: http://www.ghrnet.org/index.php/jct/article/view/2162 INTRODUCTION Instruments present in the hospital environment have the role of assisting and promoting diagnoses and treatments more accurately. The general conditions of the equipment used as well as its handling are of great importance for good prognostics [1] . The device for the measurement of blood pressure called sphygmomanometer, which Priscila Cristina Silva, Rodolfo Souza de Faria, Paulo José Oliveira Cortez, Faculty of Medicine of Itajubá (IMF), Minas Gerais General, Brazil. Rodolfo Souza de Faria, Laboratory of Human Physiology, Fac- ulty of Medicine of Itajubá. Adriano Gonçalves Sallum, Laboratory of Clinical Engineering and Technical Maintenance of the School Hospital of the Faculty of Medicine from Itajubá. Luiz Vinicius de Alcantara Sousa, Laboratory of Epidemiology and Data analysis. Faculty of Medicine of ABC - FMABC, Santo Andre, SP, Brazil. Vitor E. Valenti, Post-graduation Program in Physical Therapy, UNESP, Presidente Prudente, SP, Brazil. Confict-of-interest statement: The author(s) declare(s) that there is no confict of interest regarding the publication of this paper. Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Com- mons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non- commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non- commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ Correspondence to: Luiz Vinicius de Alcantara Sousa, Faculty of Medicine of ABC - FMABC, Santo Andre, SP, Av. Lauro Gomes, 2000, Santo André, Brazil. Email: luiz.sousa@fmabc.br Telephone: +55-11-4993-5400 Received: July 28, 2017 Revised: December 15, 2017 Accepted: December 18, 2017 Published online: January 15, 2018 ABSTRACT AIM: This work focus is analysis of the physical and calibration ORIGINAL ARTICLE Analysis of Mercury Sphygmomanometers in A Hospital School-Analysis of Mercury Sphygmomanometers Priscila Cristina Silva, Rodolfo Souza de Faria, Adriano Gonçalves Sallum, Luiz Vinicius de Alcantara Sousa, Vi- tor E. Valenti, Paulo José Oliveira Cortez 697 Journal of Cardiol Ther 2018 January; 5(1): 697-700 ISSN 2309-6861(print), ISSN 2312-122X(online) Online Submissions: http://www.ghrnet.org/index./jct/ doi:10.17554/j.issn.2309-6861.2018.05.138 Journal of Cardiology and Therapy