# Major Recall Alert: VITROS® Chemistry Products System - LAC Slides (Lactate)
QuidelOrtho has issued a significant recall for its **VITROS® Chemistry Products System - LAC Slides (Lactate)**. This decision follows customer complaints regarding the inability to successfully calibrate these slides on **VITROS® XT 3400 systems** and **VITROS® XT 7600 systems**. To resolve the calibration issue, QuidelOrtho has made critical adjustments to the assay parameter used by the reflectometer to process the slides. The parameter update, starting from **add DRV 6339 (and above)**, requires affected customers to implement the update immediately upon receipt.
This recall officially began on **August 5, 2025**, stressing the need for affected users to take prompt action. Read on for detailed information about why this recall is crucial, what steps you need to follow, and how to stay informed about future recalls.
## Why This Recall is Important
The inability to calibrate the **VITROS® LAC slides** can severely compromise performance on specific medical testing systems, including the **VITROS® XT 3400 and VITROS® XT 7600**. Calibration is a critical step for achieving accurate and reliable test results. Without proper calibration, the risk of incorrect lactate measurements rises significantly.
Erroneous lactate results could lead to:
- Misdiagnoses
- Delayed treatment
- Compromised patient safety
By adjusting the assay parameter in the software, QuidelOrtho aims to ensure the **reflectometer** can process the slides precisely, restoring functionality and accuracy in clinical environments.
### Affected Product Details:
- **Brand**: VITROS® Chemistry Products System - LAC Slides (Lactate)
- **Product Function**: Calibrating lactate levels on VITROS® XT 3400 and XT 7600 systems
- **Recall Start Date**: August 5, 2025
- **Root Cause**: Incorrect assay parameter configuration
For the official recall notice and further information, visit: [recalls-rappels.canada.ca](https://recalls-rappels.canada.ca/en/alert-recall/vitrosr-chemistry-products-system-lac-slides-lactate).
## Details of the Recall
- The issue occurs when the **VITROS® LAC slides** failed calibration on **VITROS® XT 3400** and **VITROS® XT 7600 systems**.
- QuidelOrtho has responded by:
- **Adjusting the assay parameter** used by the reflectometer.
- Launching software update **add DRV 6339 (or above)** to correct the issue.
- Customers must implement this adjustment immediately to restore proper system function.
This recall affects laboratories, clinics, and healthcare providers who rely on these systems for medical testing. If your facility uses this product, taking the recommended action is critical.
## What You Should Do
QuidelOrtho advises customers to take the following steps:
1. **Confirm System Software**: Check your system's version. Ensure you receive and implement **add DRV 6339 (or above)** upon receipt.
2. **Update Parameters**: Load the updated assay parameter (adjusted in add DRV 6339) into affected systems.
3. **Monitor Performance**: After updating, confirm the VITROS® LAC slides can calibrate successfully and produce reliable results.
4. **Contact Support**: If you continue experiencing issues, contact QuidelOrtho customer support for assistance.
Timely action is essential to reduce risks associated with inaccurate test results. Be proactive to ensure patient safety and uninterrupted clinical testing.
## Stay Safe – Get Instant Recall Alerts
Protect your healthcare facility and stay ahead of product recalls with instant notifications about critical updates like this one. Download the MyRecalls app today to:
- Get real-time alerts about new recalls.
- Access full product summaries and safety updates.
- Streamline recall management for your organization.
[Download the MyRecalls App Now](https://myrecalls.app) to stay informed and protect those under your care!
### Final Thoughts
The recall of **VITROS® Chemistry Products System - LAC Slides (Lactate)** is a vital step in addressing calibration issues that could compromise patient safety. If you use this product, follow the recommended actions to implement the **DRV 6339** update immediately. For more details, refer to the [official recall notice](https://recalls-rappels.canada.ca/en/alert-recall/vitrosr-chemistry-products-system-lac-slides-lactate).
Stay informed about future recalls by downloading the MyRecalls app today. Let’s work together to ensure safety and reliability in healthcare!