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Related Concept Videos

Urine Studies II: Urine Culture and Sensitivity Test01:26

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...
Sampling Methods: Sample Types01:18

Sampling Methods: Sample Types

Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
Urine Studies I: Urinalysis01:29

Urine Studies I: Urinalysis

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...
Sputum Studies II: Culture and Sensitivity01:20

Sputum Studies II: Culture and Sensitivity

Description
Sputum culture and sensitivity is a medical procedure used to diagnose bacterial infections in the respiratory tract and select the most appropriate antibiotics for treatment. This process involves analyzing sputum samples of thick and opaque secretions produced in the lungs and airways. These samples are collected from patients and then sent to the laboratory for analysis.
The test can identify various pathogens responsible for respiratory infections, including Streptococcus,...
Sampling Methods: Overview01:06

Sampling Methods: Overview

A sample refers to a smaller subset representative of a larger population. In analytical chemistry, studying or analyzing an entire population is often impractical or impossible. Therefore, samples are used to draw inferences and generalize the whole population. The sampling method selects individuals or items from a population to create a sample. Standard sampling methods include random, judgemental, systematic, stratified, and cluster sampling. 
In analytical chemistry, the choice of sampling...
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care01:30

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...

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Related Experiment Video

Updated: Jul 10, 2026

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies
12:08

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

Published on: August 20, 2021

[Sample collection methods for urine culture and analysis].

C Ochoa Sangrador1, M F Brezmes Valdivieso,

  • 1Servicio de Pediatría. Hospital Virgen de la Concha. Zamora. España. cochoas@meditex.es

Anales De Pediatria (Barcelona, Spain : 2003)
|November 10, 2007
PubMed
Summary
This summary is machine-generated.

Accurate urine sample collection is crucial for childhood diagnostics. Most methods lack validated reference standards, making clean catch midstream urine the most reliable for accurate results.

Related Experiment Videos

Last Updated: Jul 10, 2026

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies
12:08

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

Published on: August 20, 2021

Area of Science:

  • Pediatric diagnostics
  • Clinical microbiology
  • Urology

Background:

  • Accurate urine culture and analysis are vital for diagnosing childhood urinary tract infections.
  • Existing sample collection methods often lack standardized validation, complicating diagnostic decision-making.
  • The adhesive perineal bag method, common in Spain, shows high contamination risk and low diagnostic utility.

Purpose of the Study:

  • To review the scientific evidence on the validity of pediatric urine sample collection methods.
  • To identify reliable techniques for urine culture and analysis in children.
  • To guide clinical decision-making in selecting appropriate urine collection methods.

Main Methods:

  • Systematic review of scientific literature on urine sample collection techniques.
  • Analysis of diagnostic test evaluations focusing on reference standards.
  • Consideration of descriptive data on contamination, feasibility, safety, and acceptability.

Main Results:

  • Few studies provide generalized validity estimators (sensitivity, specificity) for pediatric urine collection methods.
  • Clean catch midstream urine samples are the exception, offering more reliable validity data.
  • Adhesive perineal bags have limited diagnostic value due to high contamination and low positive predictive value.

Conclusions:

  • Clinical decisions must weigh patient circumstances and environmental factors due to limited validated methods.
  • Urethral catheterization and suprapubic bladder aspiration are effective but invasive, restricting their use.
  • Further research is needed to establish universally valid and reliable pediatric urine collection techniques.