The Recall Desk
Severity pendingFDA (Devices)·Z-2335-2025·Announced 2025-08-27

VITROS Chemistry Products Ca Slides; Catalog Number: 145 0261;

Pending LLM rewrite. Source: FDA_DEVICE Z-2335-2025.

Severity not yet assessed

We have not scored this recall against our rubric yet, so we are not showing a severity rating or our usual guidance. The agency’s own notice below is the authoritative source — read it first.

Plain-English summary

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.

The recalled product

Product
VITROS Chemistry Products Ca Slides; Catalog Number: 145 0261;
Manufacturer
Ortho-Clinical Diagnostics, Inc.

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Lot numbers (3)

  • Catalog Number: 145 0261
  • UDI-DI: 10758750009114
  • Affected GENs: 67 and above

Distribution

Distributed nationwide across the United States.