Noise level in a neonatal intensive care unit in Santa Marta - Colombia.

Colombia Medica (Online)

Andres M Velez Pereira¹  Angelica Patricia Garrido Galindo¹  Yiniva Camargo Caicedo¹ 

[1]Universidad del Magdalena, Santa Marta, Colombia

关键词: Critical care;    noise pollution;    benchmark st;    ard;    neonatal intensive care;    environmental health;   

DOI  :  

学科分类：医学（综合）

来源: Universidad del Valle * Facultad de Salud / Universidad del Valle, Faculty of Health

【 摘 要 】

Introduction:The environment of neonatal intensive care units is influenced by numerous sources of noise emission, which contribute to raise the noise levels, and may cause hearing impairment and other physiological and psychological changes on the newborn, as well as problems with care staff.Objective:To evaluate the level and sources of noise in the neonatal intensive care unit.Methods:Sampled for 20 consecutive days every 60 seconds in A-weighting curves and fast mode with a Type I sound level meter. Recorded the average, maximum and minimum, and the 10th, 50th and 90th percentiles. The values are integrated into hours and work shift, and studied by analysis of variance. The sources were characterized in thirds of octaves.Results:The average level was 64.00±3.62dB(A), with maximum of 76.04±5.73dB(A), minimum of 54.84±2.61dB(A), and background noise of 57.95±2.83dB(A). We found four sources with levels between 16.8-63.3dB(A). Statistical analysis showed significant differences between the hours and work shift, with higher values in the early hours of the day.Conclusion:The values presented exceed the standards suggested by several organizations. The sources identified and measured recorded high values in low frequencies.

【 授权许可】

CC BY