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Eqa Program For The Xpert Mtb Rif Assay

National Health Laboratory ServiceRef: https://www.nhls.ac.za/priority-programmes/tb-genexpert/eqa-program-for-the-xpert-mtb-rif-assay/

Official source

Source domain: nhls.ac.za

Collected on 17 June 2026

Always confirm details on the official source before acting.

What this means

The document describes the NHLS EQA Program for the Xpert MTB/RIF Assay, outlining a verification and external quality assessment program using Dried Culture Spots on Whatman 903 cards to evaluate Xpert module readiness and ongoing testing quality. It explains that dried spots are tested on Xpert using standard protocols, with verification performed after installation and EQA conducted throughout the year to monitor performance. It also notes the program’s basis on inactivated MGIT-positive cultures and a flow cytometry quantitation method, and mentions related TB GeneXpert initiatives and contact details.

What this document offers

Read out of this document by Govermate's AI, in its own words. Each one quotes the line it came from — confirm on the official source before acting.

instrument verification programmeOngoing

Verification program

Sites with Xpert instruments can use Dried Culture Spots to verify every instrument module after installation and confirm that the modules are fit for reporting results.

Who it is for
Sites with newly installed Xpert instruments
How to act on it
After installation, test Dried Culture Spots on each Xpert instrument module using the normal Xpert MTB/RIF assay protocol.
Show the line this came from
For the verification program, the DCS will be tested on each module of the Xpert instrument after installation at sites, to ensure that the modules are fit for result reporting.
external quality assessment programmeOngoing

EQA Program for the Xpert MTB/RIF Assay

Laboratories using Xpert instruments can participate in ongoing external quality assessment by testing batches of Dried Culture Spots at different times during the year to monitor the quality of testing and result reporting.

Who it is for
Laboratories and sites using Xpert instruments for MTB/RIF testing
How to act on it
Test batches of Dried Culture Spots on the Xpert instruments at varying times throughout the year using the normal Xpert protocol.
Show the line this came from
For the EQA program, batches of spots will be tested on instruments at varying times throughout the year to ensure the continual quality of testing and result reporting.

Facts

Reference

https://www.nhls.ac.za/priority-programmes/tb-genexpert/eqa-program-for-the-xpert-mtb-rif-assay/

Key Takeaways

  • organization: National Health Laboratory Service (NHLS)
  • program: EQA Program for the Xpert MTB/RIF Assay
  • method: Dried Culture Spots (DCS) on Whatman 903 cards
  • analysis: flow cytometry protocol for quantitation
  • application: verification after installation on Xpert modules
  • timing: EQA testing at varying times throughout the year
  • scope: ensures module readiness and continual quality of testing
  • subject: GeneXpert TB diagnostic quality assurance
  • year: 2018-09-16 (document date), ©2023 NHLS
  • location: South Africa
  • contact: nhls@thehotline.co.za, 0800 000 552