Dimension Vista 500, Analyzer, chemistry Model no. 10284473

When the Millipore Water Purification Module Progard Pretreatment Packs are used with Dimension Vista Triglyceride assay, patient and QC triglyceride results may be erroneously elevated as a result of contamination.

On December 12, 2018, the firm issued Urgent Medical Device Correction letters to all Dimension Vista customers informing them of the issue. If customers have received a Progard Pretreatment Pack with a listed lot number, they are to follow the steps below upon Progard Pretreatment Pack installation and with use of the lots indicated. 1. Verify your water tank level is 85% or less on the WPM Maintenance screen (press Setup > Supplies > Maintain Water Supply > Maintenance). If your tank level exceeds 85%, use the Advanced->Diagnostics->Prime Pumps routine to lower the tank volume. 2. Replace the Progard filter and perform any other required maintenance as instructed in Section 7 of the Dimension Vista System Operators Guide. 3. After the Progard procedure completes, pause the instrument (Operation > Pause), and return to the WPM Maintenance screen (press Setup > Supplies > Maintain Water Supply > Maintenance) 4. Select the Refill Tank button. The process will take approximately 40 minutes to complete. An estimated time remaining is shown in the graphical user interface (GUI), and the white Status boxes in the top right indicate the steps of the process. 5. When complete, exit the WPM GUI by pressing Hide Window. An instrument reset is automatically performed as part of the process. 6. Process triglyceride QC and ensure all levels are in range. If QC is out of range, do not recalibrate triglyceride assay; contact your Siemens Technical Support Representative. If their instrument is currently using a Progard Pretreatment Pack from one of the affected lots listed, customers were instructed to process triglyceride QC to ensure that any contaminants have been purged from the system. If QC is out of range, they are not to recalibrate the triglyceride assay; contact their Siemens Technical Support Representative. If customers have received a Progard Pretreatment Pack with a lot number that is not listed, they are to continue to use the Progard Pretreatm