MAUDE Adverse Event Report: ROCHE DIAGNOSTICS ELECSYS FT4 III ASSAY; RADIOIMMUNOASSAY, FREE THYROXINE

Model Number FT4 G3

Device Problem High Test Results (2457)

Patient Problem No Consequences Or Impact To Patient (2199)

Event Date 01/12/2021

Event Type  malfunction  

Manufacturer Narrative

The patient sample was requested for investigation.This event occurred in (b)(6).Unique identifier (udi) # (b)(4).

Event Description

The initial reporter stated they received discrepant results for one patient sample tested with the elecsys ft4 iii assay on two cobas 8000 e 602 module analyzers.The values measured at the customer site were reported outside of the laboratory to a physician.The sample was tested on the customer's e 602 analyzer on (b)(6) 2021, resulting with a ft4 value of 2.10 ng/dl (reference range =.90 - 1.70 ng/dl).The sample was repeated on an abbott architect analyzer, resulting with a value of 1.43 ng/dl (reference range = 0.70 - 1.48 ng/dl).The sample was also provided for investigation, where it was tested on a second e 602 analyzer on (b)(6) 2021, resulting with a value of 1.88 ng/dl.The serial number of the customer's e 602 analyzer is (b)(4).Ft4 reagent lot number 478085, with an expiration date of may 2021 was used on this analyzer.The serial number of the e 602 analyzer used for investigation is (b)(4).Ft4 reagent lot number 478085, with an expiration date of may 2021 was used on this analyzer.

Manufacturer Narrative

Further investigations of the sample determined that it does not contain an interfering factor against a component of the ft4 assay.The different values between elecsys and abbott architect are most likely based on methodological differences.The investigation could not identify a product problem.

• Brand Name: ELECSYS FT4 III ASSAY
• Type of Device: RADIOIMMUNOASSAY, FREE THYROXINE
• Manufacturer (Section D): ROCHE DIAGNOSTICS; 9115 hague road; indianapolis IN 46250 0457
• MDR Report Key: 11375242
• MDR Text Key: 245370741
• Report Number: 1823260-2021-00566
• Device Sequence Number: 1
• Product Code: CEC
• Combination Product (y/n): N
• PMA/PMN Number: K131244
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional,u
• Type of Report: Initial,Followup
• Report Date: 05/05/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 02/24/2021
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: FT4 G3
• Device Catalogue Number: 07976836190
• Device Lot Number: 478085
• Was Device Available for Evaluation?: Yes
• Date Manufacturer Received: 02/01/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1