inforMED
MalfunctionLOK

IMMULITE 2000 AFP

Received Jun 24, 2026 · Event occurred May 13, 2026

Report 1219913-2026-00127 · MDR key 25607647

Device

Generic name

Kit, Test, Alpha-fetoprotein For Neural Tube Defects

Catalog number

10381187

Lot number

539

Product problems

  • Low Test Results

Patient

NA · Unknown

  • No Clinical Signs, Symptoms or Conditions

Narrative

Additional Manufacturer Narrative

AN OUTSIDE OF UNITED STATES (OUS) CUSTOMER REPORTED THE OBSERVATION OF A DISCORDANT, DEPRESSED IMMULITE 2000 ALPHA-FETOPROTEIN (AFP) PATIENT RESULT WHEN COMPARED TO ATELLICA IM AFP AND AN ALTERNATE METHOD. ON IMMULITE 2000 NORMAL RESULT < 5.5 IU/ML IS OBSERVED, WHILE IN ATELLICA IM AFP AND THE ALTERNATE METHOD THE RESULTS ARE PATHOLOGICAL WITH THEIR OWN REFERENCE RANGES. QUALITY CONTROL WAS WITHIN RANGE AT TIME OF TESTING. SIEMENS IS INVESTIGATING.

Description of Event or Problem

THE CUSTOMER REPORTED THE OBSERVATION OF A DISCORDANT, DEPRESSED IMMULITE 2000 ALPHA-FETOPROTEIN (AFP) PATIENT RESULT USING AFP KIT LOT: 539 WHEN COMPARED TO ATELLICA IM AFP AND AN ALTERNATE METHOD. ON IMMULITE 2000 NORMAL RESULT < 5.5 IU/ML IS OBSERVED, WHILE IN ATELLICA AND THE ALTERNATE METHOD THE RESULTS ARE PATHOLOGICAL WITH THEIR OWN REFERENCE RANGES. THERE ARE NO REPORTS OF ADVERSE HEALTH CONSEQUENCES DUE TO THE DISCORDANT RESULT.