伊朗大不里士一家新生儿重症监护病房的声级评估。
Assessment of sound levels in a neonatal intensive care unit in tabriz, iran.
作者信息
Valizadeh Sousan, Bagher Hosseini Mohammad, Alavi Nasrinsadat, Asadollahi Malihe, Kashefimehr Siamak
机构信息
Department of Pediatrics Nursing, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran.
Department of Pediatrics Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
出版信息
J Caring Sci. 2013 Feb 26;2(1):19-26. doi: 10.5681/jcs.2013.003. eCollection 2013 Mar.
INTRODUCTION
High levels of sound have several negative effects, such as noise-induced hearing loss and delayed growth and development, on premature infants in neonatal intensive care units (NICUs). In order to reduce sound levels, they should first be measured. This study was performed to assess sound levels and determine sources of noise in the NICU of Alzahra Teaching Hospital (Tabriz, Iran).
METHODS
In a descriptive study, 24 hours in 4 workdays were randomly selected. Equivalent continuous sound level (Leq), sound level that is exceeded only 10% of the time (L10), maximum sound level (Lmax), and peak instantaneous sound pressure level (Lzpeak) were measured by CEL-440 sound level meter (SLM) at 6 fixed locations in the NICU. Data was collected using a questionnaire. SPSS13 was then used for data analysis.
RESULTS
Mean values of Leq, L10, and Lmax were determined as 63.46 dBA, 65.81 dBA, and 71.30 dBA, respectively. They were all higher than standard levels (Leq < 45 dB, L10 ≤50 dB, and Lmax ≤65 dB). The highest Leq was measured at the time of nurse rounds. Leq was directly correlated with the number of staff members present in the ward. Finally, sources of noise were ordered based on their intensity.
CONCLUSION
Considering that sound levels were higher than standard levels in our studied NICU, it is necessary to adopt policies to reduce sound.
引言
高强度声音对新生儿重症监护病房（NICU）中的早产儿有多种负面影响，如噪声性听力损失以及生长发育迟缓。为了降低声音强度，首先需要对其进行测量。本研究旨在评估阿尔扎赫拉教学医院（伊朗大不里士）新生儿重症监护病房的声音强度并确定噪声来源。
方法
在一项描述性研究中，随机选择4个工作日中的24小时。使用CEL - 440声级计（SLM）在新生儿重症监护病房的6个固定位置测量等效连续声级（Leq）、仅10%时间超过的声级（L10）、最大声级（Lmax）和峰值瞬时声压级（Lzpeak）。通过问卷调查收集数据。然后使用SPSS13进行数据分析。
结果
Leq、L10和Lmax的平均值分别确定为63.46 dBA、65.81 dBA和71.30 dBA。它们均高于标准水平（Leq < 45 dB，L10≤50 dB，Lmax≤65 dB）。护士查房时测量到的Leq最高。Leq与病房内的工作人员数量直接相关。最后，根据噪声强度对噪声源进行了排序。
结论
鉴于我们所研究的新生儿重症监护病房的声音强度高于标准水平，有必要采取政策来降低声音强度。
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