MAUDE Adverse Event Report: ROCHE DIAGNOSTICS COAGUCHEK XS PT TEST 2X24 STRIPS; PROTHROMBIN TIME TEST STRIPS

Catalog Number	04625315160
Medical Device Problem Codes	Device Difficult to Setup or Prepare (1487); Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/27/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The meter serial number was (b)(6).The product was requested for investigation.The investigation is ongoing.
Event or Problem Description
There was an allegation of discrepant inr results for 1 patient tested on a coaguchek xs system.The results were 3.2 inr and 4.4 inr.The timeframe between tests was not provided.The patient's therapeutic range was not provided.

• Brand Name: COAGUCHEK XS PT TEST 2X24 STRIPS
• Common Device Name: PROTHROMBIN TIME TEST STRIPS
• Manufacturer (Section D): ROCHE DIAGNOSTICS; 9115 hague road; indianapolis IN 46250 0457
• Manufacturer (Section G): ROCHE DIAGNOSTICS GMBH; sandhofer strasse 116; mannheim (baden-wurttemberg) 68305 ; GM 68305
• Manufacturer Contact: natalie catton ; 9115 hague road; indianapolis, IN 46250
• MDR Report Key: 25232975
• Report Number: 1823260-2026-01991
• Device Sequence Number: 18687943
• Product Code: GJS
• UDI-Device Identifier: 00365702128101
• UDI-Public: 00365702128101
• Combination Product (Y/N): N
• Initial Reporter State: VA
• Initial Reporter Country: US
• PMA/510(K) Number: K060978
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 07/13/2026

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: 04625315160
• Device Lot Number: 86944517
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 04/28/2026
• Supplement Date Received by Manufacturer: 06/25/2026
• Initial Report FDA Received Date: 05/20/2026
• Supplement Report FDA Received Date: 07/13/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• 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
• Patient Sequence Number: 1
• Patient Sex: Unknown