MAUDE Adverse Event Report: ABBOTT IRELAND DIAGNOSTICS DIVISION ALINITY I TSH REAGENT KIT; RADIOIMMUNOASSAY, THYROID-STIMULATING HORMONE

Catalog Number	07P48-30
Medical Device Problem Code	Low Test Results (2458)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/09/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
An evaluation is in process.A follow-up report will be submitted when the evaluation is complete.Section a patient information: refer to section b5 for complete patient information.All available patient information was included.Additional patient details are not available.
Event or Problem Description
The customer observed falsely depressed alinity i tsh results for a 49-year-old female patient.The following data was provided (reference range 0.35-4.0 miu/ml): sid (b)(6) initial result (b)(6) 2026 was 3.48 miu/ml, the sample was repeated on (b)(6) 2026 and the result was 1.73 miu/ml the patients¿ historical results from (b)(6) 2025 3.39 miu/ml and (b)(6) 2025 4.54 miu/ml.No impact to patient management was reported.
Event or Problem Description
The customer observed falsely depressed alinity i tsh results for a 49-year-old female patient.The following data was provided (reference range 0.35-4.0 miu/ml): sid (b)(6) initial result (b)(6) 2026 was 3.48 miu/ml, the sample was repeated on (b)(6) 2026 and the result was 1.73 miu/ml.The patients¿ historical results from (b)(6) 2025 3.39 miu/ml and (b)(6) 2025 4.54 miu/ml.No impact to patient management was reported.
Additional Manufacturer Narrative
The complaint investigation included a review of data and information provided by the customer, search for similar complaints, ticket trending review, labeling review, device history record review, and field data of alinity i tsh reagent lot number 76105ud00.Data and information provided by the customer were reviewed and support the complaint issue without indication for any additional issue.Review of tracking and trending for alinity i tsh assay did not identify an increase in complaint activity related to the complaint issue.Additionally, an increase in complaint activity was not identified for reagent lot 76105ud00.Historical performance of the alinity i tsh reagents in the field was reviewed using data gathered from customers worldwide.The median population result for the complaint lot is within established limits, indicating that the lot is performing acceptably in the field.Device history record review did not identify any non-conformances or deviations with the complaint lot and complaint issue.A review of the product labeling concluded that the issue is sufficiently addressed.Based on the investigation no product deficiency was identified for the alinity i tsh reagent lot number 76105ud00.

• Brand Name: ALINITY I TSH REAGENT KIT
• Common Device Name: RADIOIMMUNOASSAY, THYROID-STIMULATING HORMONE
• Manufacturer (Section D): ABBOTT IRELAND DIAGNOSTICS DIVISION; lisnamuck; co. longford; longford N39E9 32; EI N39E932
• Manufacturer (Section G): ABBOTT IRELAND DIAGNOSTICS DIVISION; lisnamuck; co. longford; longford N39E9 32; EI N39E932
• Manufacturer Contact: nicole jenne ; max-planck-ring 2; post market surveillance; wiesbaden 65205 ; GM 65205 ; 6122582960
• MDR Report Key: 24369352
• Report Number: 3005094123-2026-00080
• Device Sequence Number: 21277498
• Product Code: JLW
• UDI-Device Identifier: 00380740131159
• UDI-Public: (01)00380740131159(17)261101(10)76105UD00
• Combination Product (Y/N): N
• Initial Reporter State: PA
• Initial Reporter Country: US
• PMA/510(K) Number: K983442
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 03/12/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: 07P48-30
• Device Lot Number: 76105UD00
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/28/2026
• Supplement Date Received by Manufacturer: 03/09/2026
• Initial Report FDA Received Date: 02/17/2026
• Supplement Report FDA Received Date: 03/12/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 05/23/2025
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Unknown
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: ALNTY I PROCESSING MODU, 03R65-01, (B)(6).; ALNTY I PROCESSING MODU, 03R65-01, (B)(6).
• Patient Age: 49 YR
• Patient Sex: Female