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Urine Studies II: Urine Culture and Sensitivity Test01:26

Urine Studies II: Urine Culture and Sensitivity Test

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Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
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Live-Cell Forward Genetic Approach to Identify and Isolate Developmental Mutants in Chlamydia trachomatis
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Chlamydia trachomatis testing sensitivity in midstream compared with first-void urine specimens.

Derelie Mangin1, David Murdoch, J Elisabeth Wells

  • 1Primary Care Research Unit, Department of General Practice, University of Otago, Christchurch, New Zealand. dee.mangin@otago.ac.nz

Annals of Family Medicine
|January 11, 2012
PubMed
Summary
This summary is machine-generated.

Midstream urine samples are as effective as first-void samples for detecting Chlamydia trachomatis using nucleic acid amplification techniques (NAATs). This finding simplifies testing for Chlamydia trachomatis in women, improving clinical practice.

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A Human Fallopian Tube Model for Investigation of C. trachomatis Infections
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Live-Cell Forward Genetic Approach to Identify and Isolate Developmental Mutants in Chlamydia trachomatis
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A Human Fallopian Tube Model for Investigation of C. trachomatis Infections
09:11

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Published on: August 11, 2012

Area of Science:

  • Urology
  • Infectious Diseases
  • Molecular Diagnostics

Background:

  • First-void urine specimens are traditionally used for Chlamydia trachomatis testing.
  • Midstream urine specimens are recommended for bacterial urinary tract infection diagnosis.
  • A single midstream specimen for both infections would enhance clinical efficiency.

Purpose of the Study:

  • To evaluate the correlation between Chlamydia trachomatis detection in first-void and midstream urine specimens.
  • To determine if midstream urine is a viable alternative for Chlamydia trachomatis testing.

Main Methods:

  • 100 women with C. trachomatis-positive first-void urine specimens were enrolled.
  • Matched midstream urine specimens were collected from these participants.
  • Chlamydia trachomatis testing was performed on all specimens using DNA detection methods (NAATs).

Main Results:

  • 96% of participants with a positive first-void specimen also had a positive midstream specimen.
  • The concordance indicates high sensitivity of midstream specimens for C. trachomatis detection.

Conclusions:

  • Nucleic acid amplification techniques (NAATs) allow for flexible urine specimen timing for C. trachomatis testing.
  • Midstream urine specimens demonstrate equivalent sensitivity to first-void specimens for C. trachomatis detection in women.
  • This supports the use of midstream urine for C. trachomatis testing in clinical and research settings.