Can the Urine Dipstick Test Be an Alternative in the Screening of Urinary Tract Infections for Inpatients in the Context of a Low-Income Country?

Background: Urinary Tract Infection (UTI), a prevalent bacterial infection in adults, heavily relies on cytobacteriological examination of urine (CBEU) for diagnosis. However, in resource-limited countries, accessibility to CBEU remains hindered by cost and availability. This study aims to assess the utility of the Urinary Dipstick Test (UDT) in diagnosing UTIs among hospitalized patients in the context of limited resources. Methods: A cross-sectional study was conducted from February to May 2019, encompassing hospitalized patients who underwent CBEU at the bacteriology unit of Sour? Sanou University Hospital. UDT and CBEU were concurrently performed, and UDT’s analytical and diagnostic performance was evaluated against CBEU, considered the gold standard. Results: A total of 274 CBEU requests were registered, involving 274 patients (159 males) with a mean age of 45.8 ± 21.3 years (ranging from 1 to 90 years). UTI was confirmed in 90 patients, yielding a frequency of 32.85%. The UTI bacteriological profile was dominated by Enterobacteriaceae (75.23%), primarily Escherichia coli (60.55%). Nitrite and Leukocytes were positive in 54 (19.8%) and 157 (53.6%) of the samples tested. Among patients with confirmed UTI, Nitrite, and Leukocytes were positive in 30 (33%) and 71 (79%) patients respectively. UDT demonstrated variable performance based on nitrite and leukocyte combination: Sensitivity (57%-82%), Specificity (7%-98%), Positive Predictive Value (PPV) (43%-57%), Negative Predictive Value (NPV) (43%-67%). UDT performed slightly better in women (NPV = 88%) and inpatients without urinary catheters (NPV = 75% and PPV = 80%). Conclusion: This study underscores UDT’s potential utility in excluding UTIs among women, younger patients, and inpatients without urinary catheters, albeit with limited confidence. The UDT emerges as a complementary tool for UTI screening, particularly in resource-limited settings.

Value of a new stick-type rapid urine test for the diagnosis of Helicobacter pylori infection in the Vietnamese population

AIM:To assess the value of a new test for the diagnosis of Helicobacter pylori(H.pylori) infection,Rapirun H.pylori Antibody Stick(Rapirun Stick),in a Vietnamese population.METHODS:Eligible patients without previous history of H.pylori eradication were recruited.Rapid urease test(RUT) and histologic examination were used to diagnose the H.pylori infection.Patients were considered H.pylori positive when the RUT results were positive and/or the bacteria were detected histologically.Rapirun Stick tests were performed using urine samples,and the results were compared with the other 2 methods.RESULTS:We enrolled 200 patients with a mean age of 36(range,18-76) years.There were 116 females and 84 males.Of the 200 patients,111(55.5%) were diagnosed as being H.pylori positive.The sensitivity,specificity,and accuracy of the Stick test were 84.7%,89.9%,and 87.0%,respectively.There were 17(8.5%) falsenegative patients and 9(4.5%) false-positive patients.CONCLUSION:The Rapirun Stick test has high sensitivity,specificity,and accuracy for the diagnosis of H.pylori infection in the Vietnamese population.The test can be clinically applied in Vietnamese populations.

The effect of urine pregnancy testing on timing of accessing antenatal care and abortion services in Western Nigeria

Objective: Effective confirmation of pregnancy is a basic component of reproductive health services. It is a determinant for accessing antenatal care (ANC) if the pregnancy is wanted and abortion services if the pregnancy is unwanted. This study examined the effect of urine pregnancy testing in the timing of presentation for pregnancy care. Method: A cross-sectional study was conducted among 320 women presenting for antenatal care and 300 women presenting for abortion at private sector clinics in Western Nigeria. Results: The median age at first presentation was 20 weeks for ANC clients and 8 weeks for abortion clients. Obtaining urine pregnancy test of one’s accord was associated with a decrease in the gestational age at presentation of 3.7 weeks and 1.5 weeks for antenatal and abortion clients, respectively, independent of all other factors. Conclusion: Bearing in mind that the clinical benefit and public health impact of early presentation for antenatal and abortion services are unequivocal, strategies aimed at decreasing gestational age at presentation for pregnancy care should be given priority. “Fast-track” urine pregnancy testing services should be promoted in the private and public clinics in Nigeria.

Early diagnosis and prediction of severity in acute pancreatitis using the urine trypsinogen-2 dipstick test:A prospective study

瞄准：评估量杆(Actim 胰腺炎) 在尖锐胰腺炎(AP ) 为严厉的早诊断和预言测试的 trypsinogen-2 的使用。方法：有 AP 的 92 个病人在这研究被包括。控制组是从非胰腺的原因有剧烈腹的疼痛的 25 个病人。尿 trypsinogen-2 量杆测试(UTDT ) 和常规诊断测试在所有病人被执行。病人们被亚特兰大分类作为有温和或严重的胰腺炎划分成二个组。结果：UTDT 是积极的在里面(94.6%)(8%) 87 AP 病人并且在二控制(P 【 0.05 ) 。积极 UTDT 在 61 被发现(92.4%) 66 (71.7%) 有温和胰腺炎并且在所有(100%) 的病人 26 (28.3%) 与严重胰腺炎(P 】 0.05 ) 。UTDT 确实在温和胰腺炎与那相比在严重胰腺炎更长持续了(6.2 +/- 2.5 d 对 2.0 +/- 1.43 d， P 【 0.05 ) 。敏感，特性，积极预兆的价值，否定预兆的价值(NPV ) ，积极可能性比率(PLR ) 和 UTDT 的否定可能性比率(NLR ) 分别地是 91% ， 72% ， 96.6% ， 70.4% ， 3.4 和 0.1。结论：UTDT 是为承认上的使用的一个简单、快速、可靠的方法。它在 AP 为严厉的早诊断和预言有高特性和低 NLR。然而，它的相对低的 NPV 不允许 trypsinogen-2 量杆测试是为尖锐胰腺炎的诊断的一个独立工具；另外的常规诊断工具的使用仍然是一个要求。

Role of urine studies in asymptomatic febrile neutropenic patients presenting to the emergency department

BACKGROUND: The role of urine studies in the detection of urinary tract infection(UTI) in febrile neutropenic patients with urinary symptoms(having a urinary catheter or having a positive urine analysis) is inarguable. However, the evidence is scarce regarding the indication for urine studies in asymptomatic(i.e., without urinary symptoms) patients with febrile neutropenia(FN) presenting to the emergency department(ED). The aim of this study is to evaluate the need for obtaining urine studies in asymptomatic febrile neutropenic patients.METHODS: This was a retrospective cohort study conducted on adult cancer patients who presented to the ED with FN and had no urinary symptoms. We included all ED presentations of eligible patients between January 2013 and September 2018. Student's t-test and Wilcoxon rank-sum test were used for continuous data, while Chi-square and Fisher's exact tests were used for categorical data. Participants were divided into two groups based on their urine culture(UC) results: negative and positive UCs. Two cut-offs were used for positive UC results: ≥10~5 cfu/m L and ≥10~4 cfu/m L.RESULTS: We included 284 patients in our study. The age of our patient population was 48.5±18.5 years. More than two-thirds(68.7%) of patients had severe neutropenia, while only 3.9% and 9.9% of the patients had positive UCs at ≥10~5 cfu/m L and ≥10~4 cfu/m L, respectively. UCs were expectedly positive in most patients with urinalysis(UA) abnormalities. However, 27.3% and 32.1% of patients with positive UCs at ≥10~5 cfu/m L and ≥10~4 cfu/m L respectively had a normal UA. CONCLUSIONS: In our study, the incidence of UTI in adult febrile neutropenic cancer patients who present to the ED without urinary symptoms is low. Consequently, routine urine testing may not be warranted in this population, as it adds unnecessary financial burdens on the patients and delays timely management.

Long-Term Detection of Propofol Glucuronide in Urine Following Anesthetic Induction and Maintenance with Propofol

Propofol is the most commonly used compound for the intravenous induction and maintenance of anesthesia. Propofol addiction and abuse have become causes for concern in the healthcare community, especially among anesthesia and surgical professionals. The US Drug Enforcement Administration does not list propofol on any Schedules and most hospitals do not have inventory controls in place to prevent its misuse. Propofol is detectable in blood plasma as the parent compound for as much as 15 hours post-anesthesia. The metabolite propofol glucuronide (PPFG) has been detected in blood and urine as far out as 60 hours. Here we report the long-term renal excretion of PPFG in specimens from A) four participants following a 14-day course of orally ingested propofol dosing, and B) a female patient following anesthetic induction and 15 minutes’ maintenance with propofol. Urinary PPFG was measurable well above limits of quantitation up to 6 days following oral ingestion and 28 days post-anesthesia. We also present a third set of data evaluating the likelihood of passive exposure to aerosolized propofol in the surgical environment by analyzing the levels of urinary PPFG of healthcare workers following operating room work shifts. The results presented here demonstrate that quantitation of PPFG in urinary samples is an efficient method of long-term screening for propofol misuse and abuse.

Contribution of the Urine Dipstick to Urinary Tract Infection Diagnosis among Children in Two Hospitals in Cotonou-Benin

Introduction: Urinary tract infections are a daily concern in pediatric nephrology with long-term risks for high blood pressure and renal failure. The purpose of this study was to determine the contribution of a urine dipstick (UD) to the diagnosis of urinary infections among children at the CNHU-HKM and the Lagoon Mother and Child University Teaching Hospital (CHU-MEL) of Cotonou. Patients and Methods: This study is a cohort, descriptive and analytical study focused on children with suspected urinary infections in the pediatric units of the CNHU-HKM and CHU-MEL of Cotonou from March 25 to August 25, 2015. Results: Two hundred and four children out of a total of 5125 admitted children (4%) presented with at least one clinical sign of a urinary tract infection. Children under 36 months of age were predominant (41%). The main clinical signs of urinary infections were fever (60.8%) and urinary disorders (38.2%). The urinary dipstick test was positive in 145 children (71.2%). A urinary tract infection was confirmed by urine culture in 38 children (18.6%). In cases with leucocyturia- and nitrituria-positive urine dipstick tests, the sensitivity was estimated to be 13.2%, and the specificity was 95.2%, with a negative predictive value (NPV) of 82.8%. Only when the leucocyturia test was positive, the sensitivity was 76.3%, and the specificity was 31.9%. When the leucocyturia test was negative, the specificity was estimated to be 94%, and the sensitivity was 83% in the nitrituria-positive cases and 15.8% in the nitrituria-negative cases. The main isolated pathogens were Escherichia coli (n = 21) and Klebsiella pneumoniae (n = 14). Conclusion: In our environment, a negative leucocyturia test may help exclude urinary tract infections in most cases.

2015-2021年CHINET尿液分离菌分布和耐药性变迁

目的了解2015-2021年CHINET细菌耐药监测网中尿液分离菌的分布和耐药性。方法收集CHINET细菌耐药监测网51家医疗机构2015-2021年所有尿液标本临床分离菌的耐药监测数据资料,采用WHONET 5.6软件进行统计分析。结果2012-2021年尿液标本共分离细菌261893株,其中革兰阳性菌62219株,占23.8%,革兰阴性菌199674株占76.2%。常见的分离菌依次为大肠埃希菌(46.7%)、屎肠球菌(10.4%)、肺炎克雷伯菌(9.8%)、粪肠球菌(8.7%)、奇异变形杆菌(3.5%)、铜绿假单胞菌(3.4%)、无乳链球菌(2.6%)和阴沟肠杆菌(2.1%)。上述细菌主要分离自住院患者,女性多见于男性,成人多见于儿童。大肠埃希菌、肺炎克雷伯菌和奇异变形杆菌中产超广谱β内酰胺酶(ESBL)菌株分别占53.2%、52.8%和37.0%。耐碳青霉烯类的大肠埃希菌、肺炎克雷伯菌、铜绿假单胞菌和鲍曼不动杆菌中检出率分别为1.7%、18.5%、16.4%和40.3%。粪肠球菌对氨苄西林、呋喃妥因、利奈唑胺、万古霉素、替考拉宁和磷霉素的耐药率<10%,屎肠球菌对氨苄西林、左氧氟沙星、红霉素的耐药率>90%,对万古霉素、利奈唑胺和替考拉宁的耐药率<2%。ICU住院患者分离的大肠埃希菌、肺炎克雷伯菌、铜绿假单胞菌和鲍曼不动杆菌对大部分抗菌药物的耐药率明显高于门诊患者和非ICU住院患者。结论尿液标本临床分离菌主要以大肠埃希菌、肠球菌和肺炎克雷伯菌为主,不同人群尿液标本中分离的细菌种类和耐药性不尽相同,应重视细菌耐药监测,减少抗菌药物的不合理使用。

基于表面增强拉曼光谱的肾结石患者体液代谢谱特点及应用价值

目的分析基于表面增强拉曼光谱(SERS)的肾结石患者体液代谢谱特点,探讨其应用价值,为肾结石患者的筛查工作提供参考。方法纳入福建省立医院泌尿外科确诊的25例肾结石患者(结石组)和25例健康体检者(对照组),采集其血液、尿液样本,利用SERS测量样本光谱,再进行平均谱和差异谱绘制。采用主成分分析结合线性判别分析(PCA-LDA)对归一化数据进行处理。最后采用受试者工作特征(ROC)曲线评估PCA-LDA方法的效能。结果结石组患者的体液(血液、尿液)拉曼光谱与对照组之间存在差异。根据既往报道的拉曼峰暂定分配,推测血浆和尿液中各有11种代谢物与肾结石有关,其中结石组尿液中的磷脂酰肌醇、苯丙氨酸、棕榈酸/脂肪酸等含量高于对照组,而尿嘧啶、糖原等成分的含量低于对照组。结石组患者血浆中的甲基带含量高于对照组,而糖原、磷脂酰肌醇、蛋白质-酪氨酸、苯丙氨酸、棕榈酸/脂肪酸、羟脯氨酸/酪氨酸和脂类的含量低于对照组。结论采用SERS检测可发现肾结石患者的尿液和血液代谢成分与健康体检者存在差异,结合PCA-LDA与ROC分析法可能有助于肾结石患者的筛查。

亚硝酸盐对焦酚红法检测24 h尿液总蛋白的干扰分析

目的探讨亚硝酸盐对于焦酚红法检测24 h尿液总蛋白的干扰效应,并评估维生素C纠正干扰的可行性。方法根据美国临床和实验室标准协会(CLSI)EP7-A3文件,选取24 h尿液总蛋白定量结果为150 mg/L、500 mg/L和1000 mg/L的新鲜尿液标本作为对照样本,并配制含不同浓度亚硝酸钠的干扰物样本。利用配对差异实验确认亚硝酸盐的干扰作用,并通过剂量效应实验明确亚硝酸盐浓度与干扰程度的关系。在终浓度为200μg/mL亚硝酸钠存在的情况下,评估不同浓度维生素C纠正干扰的效果。同时收集61例亚硝酸盐阳性和40例亚硝酸盐阴性的临床标本,比较两组标本维生素C纠正前后的相对差值,评估其临床应用价值。结果配对差异实验中200μg/mL亚硝酸钠对150 mg/L和500 mg/L两个浓度的尿总蛋白测定分别存在-157.8%和-36.2%的相对干扰,显著大于1/2TEa(22%),而对于高浓度1000 mg/L的尿总蛋白虽存在-20.5%的负干扰,但在可接受范围内。剂量效应实验结果显示随着尿液中亚硝酸盐浓度的增加,尿总蛋白检测所受负干扰作用亦逐渐增大。在终浓度为200μg/mL亚硝酸钠存在的情况下,添加0.2 mg/mL的维生素C可分别将150 mg/L和500 mg/L的尿总蛋白纠正至148 mg/L(-1.1%)和402 mg/L(-19.5%),均处于可接受范围内。临床标本中亚硝酸盐阳性组通过维生素C纠正产生的相对差值显著高于亚硝酸盐阴性组(P<0.01)。结论亚硝酸盐对于焦酚红法检测尿液总蛋白存在负干扰,尤其是在尿总蛋白150 mg/L情况下,需引起临床实验室的关注。添加0.2 mg/mL维生素C可有效纠正低浓度尿总蛋白标本中亚硝酸盐的干扰作用,具有一定的临床应用价值。

泌尿系统疾病诊断中应用尿液沉渣隐血检验及尿液分析仪的价值

目的探讨尿液沉渣隐血检验及尿液分析仪在泌尿系统疾病诊断中的应用价值,以期为临床早期明确诊断、制订治疗方案提供参考依据。方法选取我院2020年6月至2022年6月就诊的260例泌尿系统疾病患者作为研究对象,入院后均行尿液沉渣隐血检验及尿液分析仪检测,以干化学试带法检验结果为“金标准”,比较尿液沉渣隐血检验、尿液分析仪检测单独、联合检查对红细胞、白细胞阳性诊断结果、诊断效能,并比较其对于不同类型泌尿系统疾病的检出率。结果与尿液沉渣隐血检验、尿液分析仪单独诊断比较,联合诊断对于红细胞阳性诊断灵敏度96.20%、准确度95.38%较高,漏诊率3.80%较低(P<0.05);与尿液沉渣隐血检验、尿液分析仪单独诊断比较,联合诊断对于白细胞阳性诊断灵敏度95.06%、准确度95.38%较高,漏诊率4.94%较低(P<0.05);且联合诊断对肾小球病、肾结石、急性肾炎综合征、肾肿瘤检出率高于尿液沉渣隐血检验、尿液分析仪单独诊断(P<0.05)。结论尿液沉渣隐血检验、尿液分析仪联合应用可有效提高泌尿系统疾病诊断效能,为临床早期诊断、鉴别疾病类型提供参考,以针对性制订治疗方案,改善预后。

生化检验与尿液检验在糖尿病诊断中的应用

目的研究分析糖尿病以生化检验、尿液检验方式在糖尿病诊断的应用效果。方法选取2022年1月-2023年12月厦门大学附属第一医院收治的200例疑似糖尿病患者为研究对象,均接受生化检验、尿液检验,以口服糖耐量试验结果为金标准,分析不同检查方法的诊断效能。结果生化检验与尿液检验联合诊断糖尿病的准确度、灵敏度均高于单一尿液、生化检验,差异有统计学意义(P均<0.05)。不同检查方法的特异度对比,差异无统计学意义(P>0.05)。结论生化检验与尿液检验联合实施,对于糖尿病患者患病情况能够做出更为准确的诊断。

尿液样品量自动检测及收集装置的设计

目的:针对传统尿常规检测存在的问题,设计一种尿液样品量自动检测及收集装置。方法:该装置主要由主控系统、检测系统、提示系统和抓取及移动系统组成。主控系统由2个STM32单片机和复位开关组成;检测系统由称重模块、红外模块以及指示灯组成,其尿液样品量自动检测算法采用Keil5平台开发;提示系统由固定于箱体背板的语音模块实现语音播报;抓取及移动系统由导轨驱动电动机、光电开关以及电动夹爪组成,其中导轨驱动电动机采用86CM型步进电动机。结果:该装置检测尿液样品是否合格的准确率高达99.44%,且能将合格的样品自动快速收集于试管托架中。结论:该装置能够实现对尿液样品量的自动检测和合格样品的自动收集,可以有效提高检测的精准性及检测效率。

尿常规检验在甲状腺功能亢进患者中的临床价值

目的 探究尿常规检验对甲状腺功能亢进患者的临床应用价值。方法 采用回顾性研究选取2020年5月-2021年5月在本院确诊为甲状腺功能亢进的患者100例作为观察组,选取同期到本院体检的100例健康人群作为对照组。对2组人员均进行清晨空腹采血检测甲状腺功能,并给与尿常规检验。结果 观察组红细胞、上皮细胞、尿密度明显高于对照组,差异有统计学意差义(P<0.05);观察组pH值低于对照组,差异有统计学意义(P<0.05);观察组尿糖、尿胆红素、尿酮体、尿蛋白阳性率与对照组相比,差异有统计学意义(P<0.05)结论 尿常规检验有助于评估甲状腺功能亢进患者的病情及合并症,有助于指导临床治疗,具有较高的临床检测应用价值。

尿液标本放置时间对尿常规检验结果中尿沉渣、红细胞的影响

目的 研究尿液标本放置不同时间后进行尿常规检验对尿沉渣以及红细胞的影响。方法 随机抽取2021年9月至2023年9月在福建省漳州市医院检验科接受尿常规检查的患者55例,分别在样本放置0 h、1 h、2 h、4 h、6 h后进行检验,对比检验结果。结果 放置4 h后尿常规检验中红细胞(810.42±112.44)个/μl,白细胞(591.52±82.39)个/μl,低于放置2 h检验结果 [红细胞(1220.37±324.76)个/μl,白细胞(697.73±141.80)个/μl](P <0.05);放置6 h后红细胞(495.76±79.30)个/μl,白细胞(490.28±65.32)个/μl,低于放置4 h检验结果(P <0.05)。上皮细胞检验结果差异无统计学意义(P> 0.05)。放置4 h后尿常规检验中大红细胞(590.65±143.60)个/μl,溶解红细胞(35.59±8.10)个/μl,和放置2 h检验差异有统计学意义[大红细胞(391.43±126.54)个/μl,溶解红细胞(个/μl)](P <0.05);放置6 h后大红细胞(391.43±126.54)个/μl,溶解红细胞(43.27±8.82)个/μl,和放置4 h后检验差异有统计学意义(P <0.05)。小红细胞检验结果差异无统计学意义(P> 0.05)。结论 尿液样本放置时间延长对于白细胞、红细胞、大红细胞以及溶解红细胞检验结果造成较大影响,且随着时间增加检查结果误差越大,因此建议在采集样本后2 h内完成尿常规检验,最长不超过3 h完成检验工作。采集尿液样本后应保存在2~8℃冰箱内冷藏,以抑制细菌繁殖。

尿液干化学联合尿沉渣镜检测白细胞在尿路感染患者中的应用价值

目的探究尿液干化学联合尿沉渣镜检测白细胞在尿路感染患者中的应用价值。方法选取2022年3月—2023年3月麻城市人民医院收治的102例疑似尿路感染患者为研究对象,采用尿液干化学及尿沉渣镜检测法对所有患者进行白细胞检验,对比单独尿液干化学检测、单独尿沉渣镜检测及两种方法联合检测检验出尿路感染患者白细胞阳性的结果。以细菌培养检查法作为金标准,分析单独尿液干化学检测、单独尿沉渣镜检测及两种方法联合检测对尿路感染患者白细胞检验的诊断效能。结果尿液干化学、尿沉渣镜检及联合检测的阳性检出率分别为44.12%、43.14%、48.04%。对尿路感染患者白细胞检验的敏感度分别为80.00%、72.00%、90.00%,特异度分别为90.38%、84.62%、92.31%。尿液干化学和尿沉渣镜联合检测对尿路感染患者白细胞检验的敏感度和特异度均高于单独检测。结论尿路感染患者在白细胞检验方面使用尿液干化学和尿沉渣镜进行检测均具有较高的价值,且联合检测的诊断效能更优,为临床重要疾病的诊断和治疗提供有效参考。

血糖检验和尿糖检验在糖尿病患者中的临床价值

目的对比血糖检验与尿糖检验结果的准确性,评估其在糖尿病患者检验中的临床应用价值。方法选取2022年5月—2023年8月临朐县人民医院收治的40例疑似糖尿病患者为研究对象,全部患者予以尿糖检验和血糖检验,同时进行糖耐量试验作为诊断金标准,对比两种检验方式的准确度、灵敏度、特异度等指标。结果血糖检验灵敏度、准确度高于尿糖检验,差异有统计学意义(P均<0.05);两种检验方式特异度对比,差异无统计学意义(P>0.05)。结论糖尿病临床诊断中,与尿糖检验相比,血糖检验具有较高的准确性,因此,可将其应用于糖尿病临床诊断中,提高诊断准确性,以减少漏诊和误诊,为临床诊断治疗提供有力依据。

细菌定量计数联合尿沉渣白细胞检验在尿路感染诊断中的应用价值分析

目的观察分析细菌定量计数联合尿沉渣白细胞检验在尿路感染诊断中的应用价值。方法200例疑似尿路感染患者,均接受细菌定量计数、尿沉渣白细胞检验及尿细菌培养。分析尿细菌培养结果,以尿细菌培养为金标准,比较细菌定量计数、尿沉渣白细胞单一检验及联合检验的诊断效能。结果200例疑似尿路感染患者经尿细菌培养诊断,阳性标本为104例,阳性率为52.00%。以尿细菌培养为金标准,联合检验对尿路感染的诊断敏感性、特异性、阳性预测值及阴性预测值分别为98.08%、96.88%、97.14%、97.89%,细菌定量计数检验对尿路感染的诊断敏感性、特异性、阳性预测值及阴性预测值分别为80.77%、69.79%、74.34%、77.01%,尿沉渣白细胞检验对尿路感染的诊断敏感性、特异性、阳性预测值及阴性预测值分别为91.35%、92.71%、93.14%、90.82%,联合检验对尿路感染的诊断敏感性、特异性、阳性预测值及阴性预测值均高于细菌定量计数检验,敏感性、阴性预测值高于尿沉渣白细胞检验(P<0.05)。结论在尿路感染诊断中,应用细菌定量计数联合尿沉渣白细胞检验的结果与尿细菌培养更相近,具有较高的诊断价值。