inforMED
MalfunctionCEC

ALINITY I FREE T4 REAGENT KIT

Received Sep 10, 2025 · Event occurred Aug 18, 2025

Report 3005094123-2025-00438 · MDR key 23014926

Device

Generic name

Radioimmunoassay, Free Thyroxine

Catalog number

07P70-30

Lot number

75088UD00

Product problems

  • High Test Results
  • High Test Results

Patient

NA · Unknown

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

Narrative

Additional Manufacturer Narrative

THE COMPLAINT INVESTIGATION INCLUDED A REVIEW OF DATA AND INFORMATION PROVIDED BY THE CUSTOMER, A SEARCH FOR SIMILAR COMPLAINTS, A TICKET TRENDING REVIEW, A DEVICE HISTORY RECORD REVIEW, A LABELING REVIEW, AND IN-HOUSE TESTING OF RETAINED REAGENT KIT. THE DATA AND INFORMATION PROVIDED BY THE CUSTOMER WERE REVIEWED AND SUPPORT THE COMPLAINT ISSUE. A SEARCH FOR SIMILAR COMPLAINTS IDENTIFIED AN INCREASE IN COMPLAINT ACTIVITY FOR LOT 75088UD00. ADDITIONALLY, A REVIEW OF TRACKING AND TRENDING DATA FOR THE ALINITY I FREE T4 ASSAY IDENTIFIED AN INCREASE IN COMPLAINTS. HOWEVER, IN-HOUSE PERFORMANCE TESTING WAS PERFORMED UTILIZING RETAINED REAGENT KIT OF THE COMPLAINT LOT. ALL TESTING PASSED INDICATING THE REAGENT LOT IS PERFORMING AS EXPECTED. A REVIEW OF THE DEVICE HISTORY RECORD DID NOT IDENTIFY ANY NON-CONFORMANCES OR DEVIATIONS WITH LOT NUMBER 75088UD00 AND THE COMPLAINT ISSUE. A REVIEW OF LABELING WAS PERFORMED AND FOUND TO SUFFICIENTLY ADDRESS THE CUSTOMER'S ISSUE. BASED ON THIS INVESTIGATION, NO SYSTEMIC ISSUE OR DEFICIENCY WAS IDENTIFIED WITH THE ALINITY I FREE T4 REAGENT, LOT NUMBER 75088UD00.

Description of Event or Problem

THE CUSTOMER OBSERVED A FALSELY ELEVATED ALINITY I FREE T4 RESULT FOR ONE SAMPLE. THE FOLLOWING DATA WAS PROVIDED: SID (B)(6): INITIAL RESULT = 24.24 PMOL/L, REPEATS = 14.36 PMOL/L AND 13.76 PMOL/L. NO IMPACT TO PATIENT MANAGEMENT WAS REPORTED.

Additional Manufacturer Narrative

AN EVALUATION IS IN PROCESS. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE EVALUATION IS COMPLETE. ALL AVAILABLE PATIENT INFORMATION WAS INCLUDED. ADDITIONAL PATIENT DETAILS ARE NOT AVAILABLE.

Description of Event or Problem

THE CUSTOMER OBSERVED A FALSELY ELEVATED ALINITY I FREE T4 RESULT FOR ONE SAMPLE. THE FOLLOWING DATA WAS PROVIDED: SID (B)(4): INITIAL RESULT = 24.24 PMOL/L, REPEATS = 14.36 PMOL/L AND 13.76 PMOL/L. NO IMPACT TO PATIENT MANAGEMENT WAS REPORTED.