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相关概念视频

Urine Studies II: Urine Culture and Sensitivity Test01:26

Urine Studies II: Urine Culture and Sensitivity Test

58
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...
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Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

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The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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相关实验视频

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Rapid Antimicrobial Susceptibility Testing by Stimulated Raman Scattering Imaging of Deuterium Incorporation in a Single Bacterium
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少是多:何时重复抗菌素敏感性测试

Maarten J Sarink1, Lonneke G M Bode1, Peter Croughs1

  • 1Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, the Netherlands.

Journal of clinical microbiology
|July 12, 2023
PubMed
概括

大肠杆菌和黄金杆菌等常见细菌的抗菌素耐药性变化缓慢. 对于许多感染,可能不需要在7天内重复敏感性测试,从而节省资源和减少浪费.

关键词:
维特克 (Vitek) 是一个伟大的球员.对抗微生物的敏感性测试.临床微生物学实验室临床微生物学实验室费用 费用 费用 费用 费用 费用 费用 费用实验室的管理管理.现型性耐药性 现型性耐药性

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科学领域:

  • 临床微生物学 临床微生物学
  • 传染性疾病 传染性疾病
  • 抗微生物耐药性 抗微生物耐药性

背景情况:

  • 抗微生物敏感性模式可以随着时间的推移在同一个患者内发生变化.
  • 监测这些变化对于有效的治疗和感染控制至关重要.
  • 耐药性发展的频率和可预测性需要进一步调查.

研究的目的:

  • 调查常见细菌病原体对抗微生物敏感性模式变化的频率.
  • 为了评估在不同的随访期内发展抗药性的风险.
  • 评估遗漏常规后续抗微生物敏感性测试的可行性.

主要方法:

  • 从2014年1月到2021年12月,对18,501个抗微生物敏感性测试 (AST) 的回顾性分析.
  • 专注于大肠杆菌,肺炎菌,肠杆菌种类,空气菌和金黄色葡萄球菌.
  • 利用Vitek 2系统,确定基本和分类协议,并为阻力变化引入新的指标.

主要成果:

  • 黄金葡萄球菌在30天内表现出<10%的耐药性风险.
  • 肠道细菌在7天内表现出约10%的耐药性风险.
  • Pseudomonas aeruginosa 在长时间的随访期间显示出更高的耐药性风险; 特定的药物虫组合 (例如,大肠杆菌/氨基-克拉夫兰酸) 更容易产生耐药性.

结论:

  • 随访AST风险低于10%表明,对于某些细菌,在7天内省略重复测试可能是可行的.
  • 这种方法可以节省大量的成本,时间和实验室废物.
  • 需要进一步的研究,以平衡经济效益与非最佳抗生素治疗的风险.