inforMED
MalfunctionLFZ

ELECSYS CMV IGG

Received Jan 15, 2026 · Event occurred Dec 23, 2025

Report 1823260-2026-00181 · MDR key 24077914

Device

Generic name

Cytomegalovirus Immunoassay

Manufacturer

Roche Diagnostics

Model number

CMV IGG

Catalog number

09118551190

Lot number

87843800

Product problems

  • False Positive Result
  • High Test Results
  • Non Reproducible Results

Patient

NA · Female

  • No Clinical Signs, Symptoms or Conditions

Narrative

Additional Manufacturer Narrative

THE COBAS E 801 MODULE SERIAL NUMBER WAS (B)(6). THE INVESTIGATION IS ONGOING.

Description of Event or Problem

THERE WAS AN ALLEGATION OF QUESTIONABLE ELECSYS CMV IGG RESULTS FROM THE COBAS E 801 MODULE. THE INITIAL RESULT WAS 7.57 U/ML (REACTIVE). THE REPEAT RESULT WAS CONSISTENTLY 0.15 U/ML (NON-REACTIVE) UPON TESTING FIVE TIMES.

Additional Manufacturer Narrative

THE INVESTIGATION WAS UNABLE TO DETERMINE A SPECIFIC ROOT CAUSE. A SAMPLE-SPECIFIC ISSUE COULD NTO BE EXCLUDED. CORRECT PRE-ANALYTIC SAMPLE HANDLING IS WITHIN THE CUSTOMER'S RESPONSIBILITY. A GENERAL REAGENT PROBLEM WAS NOT PRESENT BECAUSE THE QC PRIOR TO THE EVENT WAS WITHIN RANGES. THERE IS NO EVIDENCE TO SUGGEST A MALFUNCTION OF THE DEVICE.