MAUDE Adverse Event Report: ROCHE DIAGNOSTICS ELECSYS T4; RADIOIMMUNOASSAY, TOTAL THYROXINE

Catalog Number ASKU

Device Problem High Test Results (2457)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 05/15/2023

Event Type  malfunction  

Event Description

There was an allegation of questionable results for multiple assays for one patient from cobas 8000 e 801 serial number (b)(6) due to interference.The questionable results were reported outside of the laboratory.The sample was repeated on an abbott analyzer and the results were normal and in line with the clinical expectations.This medwatch is for the t4 assay.Refer to the attachment to the medwatch for all patient data.

Manufacturer Narrative

The investigation is ongoing.H3 other text : na.

Manufacturer Narrative

Sample from the patient was submitted for investigation and a streptavidin interfering factor was found.Product labeling documents this interference: rare cases, interference due to extremely high titers of antibodies to analyte-specific antibodies, streptavidin or ruthenium can occur.These effects are minimized by suitable test design.For diagnostic purposes, the results should always be assessed in conjunction with the patient¿s medical history, clinical examination and other findings.A general product problem could be excluded.

• Brand Name: ELECSYS T4
• Type of Device: RADIOIMMUNOASSAY, TOTAL THYROXINE
• Manufacturer (Section D): ROCHE DIAGNOSTICS; 9115 hague road; indianapolis IN 46250 0457
• Manufacturer (Section G): ROCHE DIAGNOSTICS GMBH; sandhoferstrasse 116; na; mannheim (baden-wurttemberg) 68305 ; GM 68305
• Manufacturer Contact: amy nelson ; 9115 hague road; na; indianapolis, IN 46250 ; 3174767531
• MDR Report Key: 17081385
• MDR Text Key: 317138264
• Report Number: 1823260-2023-01889
• Device Sequence Number: 1
• Product Code: CDX
• Combination Product (y/n): N
• Reporter Country Code: CH
• PMA/PMN Number: ASKU
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,Health Professional,User Facility
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date: 07/17/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 06/07/2023
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Catalogue Number: ASKU
• Device Lot Number: ASKU
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 07/12/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1