BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    INRATIO

    MDR report key: 1021490 · Received March 26, 2008

    Report

    Report Number
    2954730-2008-00139
    Event Type
    Malfunction
    Date Received
    March 26, 2008
    Date of Event
    February 26, 2008
    Report Date
    March 24, 2008
    Manufacturer
    HEMOSENSE SJ
    Product Code
    JPA
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Occupation
    OTHER

    Narratives

    Additional Manufacturer Narrative · 1

    DISCREPANT RESULTS (ACCURACY) COMPARISON OF INRATIO TEST WITH LAB RESULTS PROVIDED BY END-USER AT TIME COMPLAINT WAS FILED. PER INTERNAL PROCEDURE, THE MEAN OF THE INRATIO METER AND COMPARATIVE SYSTEM INR WERE CALCULATED. FOR ALL 3 DATA SETS, THE INRATIO VALUES ARE NOT WITHIN THE CONFIDENCE LIMITS FOR INR TESTING. FOR THE 1ST DATA SET, THE LAB VALUE IS NOT WITHIN THE CONFIDENCE LIMITS BUT THE VALUES FOR THE 2ND AND 3RD ARE. THE RESULTS ARE CONSIDERED DISCREPANT WITHIN THE CONTEXT OF THE DOCUMENTED VARIABILITY FOR INR TESTING. THEREFORE FURTHER TESTING IS REQUIRED AT THIS TIME. INRATIO PRECISION DATA PROVIDED BY END-USER LOT: 070415. FIRST TEST INR = 1.1; SECOND TEST INR = 1.0. MEAN = 1.05; SD = 0.07; %CV = 6.73. THE %CV IS LESS THAN 20%. PER INTERNAL PROCEDURE, THE PRECISION PASSES THE CRITERIA FOR PRECISION. THE TEST IS CONSIDERED PRECISE AND FURTHER TESTING IS REQUIRED AT THIS TIME.

    Description of Event or Problem · 1

    CALLER ALLEGES INACCURACY WITH INRATIO. RESULTS AS FOLLOWS: DATE: 2008; INRATIO: 1.0, 1.1, 1.1; LAB: 2.0, 2.0, 2.3. CALLER ALLEGES IMPRECISION WITH INRATIO. RESULTS AS FOLLOWS: FIRST TEST INR = 1.1; SECOND TEST INR: 1.0.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    1 INRATIO PROTHROMBIN TIME TEST JPA HEMOSENSE SJ KIT, PROFESSIONAL USER, ENGLISH 070415

    Patients

    Seq Age Sex Outcome Treatment
    1