中国的尿检测实践:为期五年的外部质量评估计划的结果
Chao Zhang1, Ying Yan2, Tianjiao Zhang2
1National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beiijng, PR China; Peking Union Medical College, Beijing, PR China.
概括
尿 (UI) 检测的外部质量评估显示,整体通过率很高,但强调了准确测量低度的挑战. 建议侧重于提高UI测量精度和标准化实验室程序.
科学领域:
- 临床化学 临床化学
- 实验室医学 实验室医学
- 分析化学 分析化学
背景情况:
- 分析了2020-2024年尿 (UI) 外部质量评估 (EQA) 数据.
- 确定了一些问题,并为UI测量准确性和标准化提供了建议.
研究的目的:
- 评估不同UI测量方法的性能.
- 确定影响UI测试质量的因素.
- 提供可行的改进建议.
主要方法:
- 按测量方法分类数据.
- 根据ISO13528.8标准计算的稳定平均值和稳定变化系数 (CV).
- 使用±30%的目标标准,通过率和实验室间简历评估绩效.
主要成果:
- 总体而言,UI测试的通过率超过了90%.
- 甲基西丁 (TMB) 试验显示有改善;-催化光谱测量 (ACCS) 结果始终良好.
- 较低的UI度显示出较低的通过率和增加的实验室间CV,其中TMB显示出最高的CV.
结论:
- 迫切需要提高低度UI测量的真实性和精度.
- 人类错误,包括小数点位置和样本错误排序,影响结果.
- 建议涉及人员,样本和方法,以提高UI测试质量.
相关概念视频
01:29Urine Studies I: Urinalysis
169
Urinalysis is a widely used diagnostic test that analyzes urine's physical, chemical, and microscopic characteristics. Healthcare providers use it to detect and monitor various health conditions, including renal disease, urinary tract infections (UTIs), diabetes, and metabolic or systemic disorders.Components of UrinalysisUrinalysis consists of three primary components: physical, chemical, and microscopic examination. Each provides unique insights into the urine sample and, by extension, the...
169
01:30Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
49
A healthcare provider can diagnose a urinary tract infection (UTI) through several methods:Medical History and Symptoms: The provider will take a detailed medical history and ask about symptoms such as frequent urination, burning sensation during urination, and lower abdominal pain.Urinalysis: A clean-catch urine sample is collected in a sterile container and tested for the presence of bacteria, white blood cells (leukocytes), nitrites, blood, and protein. The presence of leukocytes and...
49
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
177
IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
177
01:26Urine Studies II: Urine Culture and Sensitivity Test
130
A urine culture and sensitivity test is a diagnostic procedure used to identify urinary tract bacterial infections and determine the most effective antibiotics for treatment. This test is generally preferred when a patient shows manifestations of a urinary tract infection, such as frequent or painful urination, cloudy or foul-smelling urine, or lower abdominal pain.Purpose of the TestThe primary goals of a urine culture and sensitivity test are to:Determine the specific bacteria causing the...
130
01:22Imaging Studies VI: Voiding Cystourethrography and Cystography
143
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
143