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Related Concept Videos

Urine Studies II: Urine Culture and Sensitivity Test01:26

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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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Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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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...
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Urinary Tract Infection I: Introduction01:26

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Urinary tract infections (UTIs) impact various parts of the urinary system, including the kidneys, ureters, bladder, and urethra. These infections are generally bacterial, with Escherichia coli being the most common causative agent, often originating from the gastrointestinal tract. However, other bacteria, such as Staphylococcus saprophyticus, Klebsiella pneumoniae, and Proteus mirabilis, are also known to cause UTIs. The type, location, and underlying complexity of the UTI guide both...
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Urinary Tract Infection II: Pathophysiology01:25

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The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
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Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
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CHANGES IN URINARY ISOLATES AND THEIR ANTIBIOTIC RESISTANCE PATTERN.

R N Misra1, N K Debata2, Yogesh Chander1

  • 1Reader, Department of Microbiology, Armed Forces Medical College, Pune 411 040.

Medical Journal, Armed Forces India
|August 5, 2017
PubMed
Summary
This summary is machine-generated.

Antibiotic resistance varies between community and hospital urinary isolates. Escherichia coli and Staphylococcus aureus were common. Resistance to ampicillin and cefotaxime was high in hospital strains, necessitating susceptibility testing.

Keywords:
Antibiotic resistanceUTI

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Area of Science:

  • Medical Microbiology
  • Infectious Diseases
  • Antimicrobial Resistance

Background:

  • Urinary tract infections (UTIs) are common, with increasing concerns about antimicrobial resistance.
  • Understanding resistance patterns in both community-acquired and hospital-acquired UTIs is crucial for effective treatment.

Purpose of the Study:

  • To identify common bacterial uropathogens and determine their antibiotic resistance profiles.
  • To compare resistance patterns between community and hospital-acquired urinary isolates.
  • To provide recommendations for empirical antibiotic therapy based on resistance data.

Main Methods:

  • Analysis of 338 urinary isolates from AFMC, Pune (1998).
  • Species identification and antibiotic susceptibility testing.
  • Comparison of resistance rates for various antibiotics including ampicillin, cefotaxime, fluoroquinolones, aminoglycosides, trimethoprim, and sulphamethoxazole.

Main Results:

  • Escherichia coli (67%) and Staphylococcus aureus (11%) were predominant community isolates.
  • Hospital isolates of E. coli and Proteus spp. showed high resistance to ampicillin (81%, 89%) but lower to cefotaxime (23%, 22%).
  • Klebsiella pneumoniae exhibited high cefotaxime resistance (54% community, 75% hospital), and Proteus spp. showed significant fluoroquinolone resistance (78-82%).

Conclusions:

  • Antibiotic resistance patterns differ significantly between community and hospital-acquired urinary isolates.
  • Susceptibility testing is essential for both isolate types.
  • Recommended first-line empirical treatments vary, prioritizing agents like nitrofurantoin, amikacin, and cefotaxime for community isolates, and amikacin, cefotaxime, and netilmicin for hospital isolates.