Eley Rhiannon
Clinical Teacher, Florence Nightingale Faculty of Nursing and Midwifery, King's College London.
Br J Nurs. 2015;24(9):S4, S6-9. doi: 10.12968/bjon.2015.24.Sup9.S4.
Urinalysis is a frequently performed test that provides valuable information as to the health of individuals. The presence of nitrites in the urine may indicate infection. Antibiotic therapy is commonly started following the results of dipstick urine taken from non-sterile urine samples. This is especially prevalent in men who are immobile, because sterile containers large enough to hold a full bladder of urine are not available (at the author's trust). Urine samples were taken from 25 male A&E patients in a sterile container. Half of each sample was decanted into an ordinary cardboard urine bottle and both samples were then tested using dipstick urinalysis after 1 minute and after 10 minutes to see if there was a difference in the presence of nitrites between the two container types. After 10 minutes, 21 of the 25 samples showed a positive nitrite dipstick in the cardboard container while it remained negative when the urine remained in the sterile container. These results demonstrate that care needs to be taken when collecting urine samples, and the results of dipstick urinalysis should be used with caution depending on the collection method.
尿液分析是一项经常进行的检测，能提供有关个人健康状况的有价值信息。尿液中存在亚硝酸盐可能表明存在感染。根据从非无菌尿液样本中获取的尿试纸检测结果，通常会开始抗生素治疗。这在行动不便的男性中尤为普遍，因为没有足够大的无菌容器来容纳一整膀胱尿液（据作者所在医院情况）。从25名男性急症室患者身上采集尿液样本至无菌容器中。每个样本的一半被倒入普通硬纸板尿瓶中，然后在1分钟和10分钟后对两个样本都进行尿试纸尿液分析，以查看两种容器类型中亚硝酸盐的存在情况是否有差异。10分钟后，25个样本中有21个在硬纸板容器中显示尿试纸亚硝酸盐呈阳性，而当尿液留在无菌容器中时仍为阴性。这些结果表明，采集尿液样本时需要谨慎，并且应根据采集方法谨慎使用尿试纸尿液分析结果。
