Why Microbiology Labs Fail Without QC and Proficiency Testing
How do labs get results wrong? Test result inaccuracies in microbiology laboratories happen for several reasons:
- Sample collection issues: sample/specimen rejections happen due to wrong sample/specimen types, insufficient quantities, or incorrect containers.
- Transport problems: sample/specimens take too long to reach the lab, allowing unwanted organisms to grow, which leads to misleading results
- Test Protocol issues: test protocols are either not validated correctly for analyte or not followed correctly, or equipment and reagents used are faulty under conditions in the lab.
Financial Impact of Laboratory Errors
Errors in microbiological testing can trigger a chain of commercial and legal issues. Incorrect lab results can lead to poor decisions that impact product safety, patient care, and business sustainability. The accuracy and reliability of testing procedures depend on following laboratory best practices. Labs can also face extra expenses from repeated sampling, additional testing, staff overtime and investigating root causes.
Quality Control Organisms: How QC Organisms Ensure Test Validity
Quality control organisms are the foundations of reliable microbiological testing. These specialized materials provide the measurements needed to ensure accurate and repeatable test results in routine laboratory testing. QC strains are normally well-characterized microorganisms with defined profiles, they serve as verified standards with predictable biochemical reactions, which makes them perfect for testing applications of all types.
QC organisms, whether from a type culture collection or from in-house isolates, play a key role in confirming test validity in pharmaceutical, food, and clinical testing labs. These materials help:
- Validate testing methodologies
- Monitor test methodologies to verify instrument, operator and reagent quality
- Validate culture media through growth promotion testing
- Support new test method validation
- Serve as positive controls for diagnostic procedures
In this rapidmicrobiology special focus we enable labs to discover products to help reduce laboratory errors. Starting with collecting and transporting a clinical specimen - is your current system M40-A2 compliant? Discover from Medical Wire why it matters that it is!
For over five decades, Microbiologics has been a global leader in providing user-friendly and reliable microbial controls designed to simplify compliance and streamline QC testing. Their extensive portfolio includes trusted solutions for both culture-based and molecular methods, as well as supporting laboratories in clinical, pharmaceutical, and food microbiology.
In recent years, using in-house isolates and other objectionable microorganisms in various microbiological quality test methods has gained significant importance in meeting regulatory expectations and ensuring product quality. BioMerieux's BIOBALL® Custom Services helps you simplify the process of using your own in-house microbial strains for QC.
Zeptometrix's Microgel-Flash™ pellet is designed for use with Petrifilm™ and other rehydratable film methods. Each dehydrated pellet contains a known CFU of multiple microorganisms that can be used to test all at once.
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