inforMED
MalfunctionJHR

ELECSYS IGE II

Received Aug 7, 2023 · Event occurred Jul 10, 2023

Report 1823260-2023-02553 · MDR key 17475403

Device

Generic name

Radioimmunoassay, Immunoglobulins (d,e)

Manufacturer

Roche Diagnostics

Catalog number

04827031190

Lot number

67239400

Product problems

  • Low Test Results
  • Non Reproducible Results
  • Low Test Results
  • Non Reproducible Results

Patient

6 MO · Unknown

  • No Clinical Signs, Symptoms or Conditions
  • No Clinical Signs, Symptoms or Conditions

Narrative

Additional Manufacturer Narrative

THE FIELD SERVICE ENGINEER (FSE) FOUND THAT THE SAMPLE PIPETTE WAS VERY CLOSE TO THE WALL OF THE SAMPLE TUBES AND MADE ADJUSTMENTS. IT WAS FOUND THAT THE CUSTOMER WAS NOT USING RACK ADAPTERS. THE INVESTIGATION DID NOT IDENTIFY A PRODUCT PROBLEM. THE ROOT CAUSE OF THE EVENT COULD NOT BE DETERMINED.

Additional Manufacturer Narrative

THE ANALYZER SERIAL NUMBER IS (B)(6). THE CALIBRATION AND QC DATA PROVIDED WAS ACCEPTABLE. THE ALARM TRACE SHOWED MULTIPLE SAMPLE QUALITY ALARMS. THE INVESTIGATION IS ONGOING.

Description of Event or Problem

THERE WAS AN ALLEGATION OF QUESTIONABLE ELECSYS IGE II RESULTS FOR 1 PATIENT SAMPLE ON A COBAS 6000 E601 MODULE. THE INITIAL IGE RESULT WAS 134.5 IU/ML. THE SAMPLE WAS REPEATED AS THE INITIAL RESULT WAS OUTSIDE OF THE REFERENCE RANGE. THE REPEAT RESULT WAS 1.02 IU/ML AND THE SECOND REPEAT RESULT WAS 147.5 IU/ML. THE SECOND REPEAT RESULT WAS DEEMED CORRECT. NO QUESTIONABLE RESULTS WERE REPORTED OUTSIDE OF THE LABORATORY.