FDA Devices recall · Reported August 27, 2025
VITROS Chemistry Products Ca Slides; Catalog Number: 145 0261;
Generations 67 and above of VITROS Ca Slides are experiencing an increased occurrence of Condition Code TH4-63J during calibration on VITROS XT 3400 and VITROS XT 7600 Systems, ca…
Ortho-Clinical Diagnostics, Inc. recalled VITROS Chemistry Products Ca Slides; Catalog Number: 145 0261; - a moderate-severity action.
VITROS Chemistry Products Ca Slides; Catalog Number: 145 0261; was recalled by Ortho-Clinical Diagnostics, Inc. in August 27, 2025. Reason: Generations 67 and above of VITROS Ca Slides are experiencing an increased occurrence of Condition Code TH4-6…. Check the official notice for the remedy. Verify recall #Z-2335-2025 with the FDA Devices before acting.
The recall
Ortho-Clinical Diagnostics, Inc. issued this moderate-severity FDA Devices recall-Generations 67 and above of VITROS Ca Slides are experiencing an increased occurrence of Condition Code TH4-6….
- Moderate
- severity level
- 174K units
- affected scope
- Class II
- classification
- August 27, 2025
- reported
Sourced from official FDA Devices enforcement records. Verify recall #Z-2335-2025 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
This recall's affected scope (see the Recall Profile below) is large enough to require multi-state distribution tracking. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.
Within the same product category the archive holds 6 closely related recalls, 6 from FDA Devices - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.
Medical Devices recalls over time
Where this recall sits in its category - 41,021 medical devices recalls on record
Of 88,244 recalls with an agency hazard classification, 19,068 are high severity, 64,652 moderate, and 4,524 low. A further 16,179 CPSC/NHTSA recalls have no agency class and are excluded from this split. This recall is classified moderate severity.
Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.
Product description
VITROS Chemistry Products Ca Slides; Catalog Number: 145 0261;
Reason for recall
Generations 67 and above of VITROS Ca Slides are experiencing an increased occurrence of Condition Code TH4-63J during calibration on VITROS XT 3400 and VITROS XT 7600 Systems, causing calibration failures that delay calcium test results and potentially impact patient management. The imaging reflectometer algorithm detects excessive "spikes" (imperfections) in slide images and generates the TH4-63J condition code when the threshold of 600 spikes is exceeded. Updated analysis revealed a 19-fold increase in failure rates from 0.0043% (2024 baseline) to 0.082% for Generation 67+ slides in 2025, with 100% of calibrator failures occurring at the lowest concentration level. This can result in delayed diagnosis and treatment of conditions such as hypercalcemic crisis, parathyroid disorders, and other calcium-related emergencies requiring urgent intervention.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | U.S. Food and Drug Administration |
| Severity class | Moderate (Class II) |
| Status | Ongoing |
| Recall number | Z-2335-2025 |
| Date reported | August 27, 2025 |
| Date initiated | July 9, 2025 |
| Recalling firm | Ortho-Clinical Diagnostics, Inc. |
| Firm location | Rochester, NY |
| Affected scope | 174,215 units |
| Distribution | Worldwide distribution - US Nationwide and the countries of Australia, Belgium, Bermuda, Brazil, Canada, Chile, China, Colombia, Denmark, France, Germany, India, Italy, Japan, Mexico, Netherlands, Norway, Portugal, Russia, Singapore, Spain… |
Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.
What to do with this recall
Match your product against the recall record, then act on the agency remedy.
- Check the recall number (Z-2335-2025) and product description against the item you own. Search the archive
- Confirm the current status with FDA Devices before acting, recall details can be updated.
- Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next
This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.
Frequently Asked Questions
What product was recalled? ▼
Why was this product recalled? ▼
Which agency issued this recall? ▼
Where was the recalled product distributed? ▼
Should I stop using a recalled medication or medical device? ▼
Nationwide recalls with similar severity or category timing
Drug and device notices outside this firm and state, matched by severity timing and product category.
Similar severity · nearest report date
Same archive severity grade (Moderate), closest by report date among other firms and states.
Similar Medical Devices · nearest report date
Same product category, closest by report date among other firms and states (deduped against the severity set).
Compare this recall with GORE VIABIL Short Wire Biliary Endoprosthesis, Model No. VS… → · All Medical Devices recalls
Methodology · Corrections · Archive as of August 2026