Daily, Weekly and Monthly Maintenance of Truenat Instrument

Daily maintenance of Truelab and Trueprep instruments performed by the laboratory personnel includes:

• Maintaining a dust-free environment by wiping the exterior of instruments with a dry, lint-free cloth
• Cleaning the surface of the Trueprep device once with 70% ethanol
• Cleaning the spill or leak with a cloth or tissue-paper dipped in disinfectant (1% sodium hypochlorite solution, followed by 70% ethanol)
• Not spilling water or any other solution on the surface of instruments
• Discarding used cartridges, chips, reagent bottles and other consumables in 1% sodium hypochlorite solution, soaking for minimum 30 minutes, and disposing as per the biomedical waste management guidelines.

Monthly maintenance of the Truelab Analyzer performed by laboratory personnel includes:

• Cleaning the surface of the Truelab Analyzer with 70% ethanol
• Cleaning the Truelab bays
• Calibrating temperature.

Annual/ need-based maintenance of the Truenat instrument performed by the laboratory personnel/ manufacturer includes:

• Flush protocol for the Trueprep device when the device is left idle (not used) for 10 days and/ or errors relating to extraction process occur
• Replacement of spillage tray or linear motion guide tray for the Trueprep device in case of sample spillage on trays during extraction or when cross-contamination is suspected
• Replacement of slider glass for Truelab Analyzer after 200 tests and/ or when related errors occur
• Temperature calibration for Truelab Analyzer when error related to temperature occur and/ or when the temperature curve is abnormal (shows blips)
• Calibration of micropipettes (every 6 months/ biannual).

Resources

• Practical Guide to Implementation of Truenat™ Tests for the Detection of TB and Rifampicin Resistance.
• Trueprep Manual.
• MolBio Diagnostics Pvt. Ltd.

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