Level and Noise Sources in the Neonatal Intensive Care Unit of a Reference Hospital

Authors

  • Alma Damaris Hernández-Salazar Universidad Autónoma de San Luis Potosí
  • Josefina Gallegos-Martínez Universidad Autónoma de San Luis Potosí
  • Jaime Reyes-Hernández Universidad Autónoma de San Luis Potosí

DOI:

https://doi.org/10.17533/udea.iee.v38n3e13

Keywords:

intensive care units, neonatal, infant, premature, noise measurement, interior design and furnishings

Abstract


Objective. Determine the level of environmental and periauricular noise in preterm babies and identify the sources generating noise in the Neonatal Intensive Care Unit -NICU- of a reference hospital in San Luis Potosí, Mexico.

Methods. Cross-sectional and analytic study of the measurement of the level of environmental noise in five critical areas of the NICU, according with the method of measurement of noise from fixed sources by the Mexican Official Norm and periauricular at 20 cm from the preterm patient’s pinna. The measurements were carried out during three representative days of a week,
morning, evening and nocturnal shifts. A STEREN 400 sound level meter was used with 30 to 130 dB range of measurement and a rate of 0.5 s.

Results. The average level of periauricular noise (64.5±1.91dB) was higher than the environmental noise (63.3±1.74 dB) during the days and shifts evaluated. The principal noise sources were activities carried out by the staff, like the nursing change of shift and conversations by the staff, which raised the level continuously or intermittently, operation of vital support equipment (alarms) and incidences (clashing of baby bottles and moving furnishings) produced
sudden rises of noise.

Conclusions. Environmental and periauricular noise in NICU exceeds by two and almost three times the 45 dB during the day and 35 dB at night from the norm in hospitals. It is necessary to implement permanent noise reduction programs to prevent sequelae in the preterm infant and professional burnout in the nursing staff.

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Author Biographies

Alma Damaris Hernández-Salazar, Universidad Autónoma de San Luis Potosí

Nursing Degree, Specialist. Email: almadhs29@hotmail.com Universidad Autónoma de San Luis Potosí, S.L.P., México.

Josefina Gallegos-Martínez, Universidad Autónoma de San Luis Potosí

Nursing Degree, PhD. Professor and Full-time Researcher. Email: jgallego@uaslp.mx. Corresponding author. Universidad Autónoma de San Luis Potosí, S.L.P., México.

Jaime Reyes-Hernández, Universidad Autónoma de San Luis Potosí

Engineer, PhD. Professor and Full-time Researcher. Email: reyes.jaimeh@uaslp.mx. Universidad Autónoma de San Luis Potosí, S.L.P., México.

References

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Published

2020-11-09

How to Cite

Hernández-Salazar, A. D., Gallegos-Martínez, J., & Reyes-Hernández, J. (2020). Level and Noise Sources in the Neonatal Intensive Care Unit of a Reference Hospital. Investigación Y Educación En Enfermería, 38(3). https://doi.org/10.17533/udea.iee.v38n3e13

Issue

Section

ORIGINAL ARTICLES / ARTÍCULOS ORIGINALES / ARTIGOS ORIGINAIS

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