相关实验视频

Updated: Jun 28, 2026

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

Published on: July 9, 2012

聚合抗生素敏感性测试对多微生物尿路感染在CLSI验证标准内执行

Richard A Festa¹, Frank R Cockerill², Rick L Pesano²

¹Department of Research and Development, Pathnostics, Irvine, CA 92618, USA.

Antibiotics (Basel, Switzerland)

|February 26, 2025

概括

聚合抗生素敏感性测试 (P-AST) 与诊断尿路感染 (UTI) 的标准方法相比显示出高一致性和低错误率. 这种新的方法符合抗菌素耐药性测试的临床标准.

科学领域:

临床微生物学临床微生物学
诊断试验的发展.
抗微生物耐药性抗微生物耐药性

背景情况:

尿路感染 (UTI) 由于抗菌素耐药性增加而构成越来越大的挑战.
新的诊断测试正在出现,以克服标准尿液培养的局限性.
对新测试与已建立的抗生素敏感性测试 (AST) 方法进行验证至关重要.

研究的目的:

为了验证一种新的诊断测试,聚合抗生素敏感性测试 (P-AST),与标准的AST方法相比.
评估多微生物尿道感染样本中P-AST的一致性和错误率.
为了评估生物体负载对抗生素敏感性结果的影响.

主要方法:

使用P-AST和标准微稀释/盘扩散 (BMD/DD) 方法测试了多微生物尿样.
性能特征包括基本协议 (EA%),非常重大错误 (VMEs) 和重大错误 (ME) 根据临床和实验室标准研究所 (CLSI) 的指导方针进行评估.
评估了异质抗性和生物体数量与抗生素敏感性之间的关联.

主要成果:

与标准AST相比,P-AST显示了≥90%的基本一致性,并满足了CLSI对VMEs (<2.0%) 和MEs (<3.0%) 的指导方针.
在计算异阻力时,VMEs和ME均为<1.5%.
生物数量的增加显著减少了每个样本检测到的"敏感"抗生素的数量.

结论:

作为Guidance®尿道感染检测的一部分,P-AST在多微生物尿道感染诊断样本中执行AST的CLSI标准.
这些发现支持P-AST用于准确的尿路感染诊断的实用性.
该研究强调了在解释AST结果时考虑生物体负荷的重要性.

关键词:

抗生素耐药性抗生素耐药性抗生素敏感性测试抗生素敏感性测试牛微稀释的方法磁盘扩散是指光盘的扩散.不同电阻的不同电阻.它们是多微生物的.汇总的抗生素敏感性测试.尿路感染尿路感染

更多相关视频

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses

Published on: August 30, 2018

Antimicrobial Synergy Testing by the Inkjet Printer-assisted Automated Checkerboard Array and the Manual Time-kill Method

Antimicrobial Synergy Testing by the Inkjet Printer-assisted Automated Checkerboard Array and the Manual Time-kill Method

Published on: April 18, 2019

相关概念视频

Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care

Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care

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...

Urine Studies II: Urine Culture and Sensitivity Test

Urine Studies II: Urine Culture and Sensitivity Test

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...

Automated Microbial Diagnostics

Automated Microbial Diagnostics

Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...