FDA Adverse Event Malfunction Summary report: N

INRATIO

MDR report key: 1942812 · Received December 20, 2010

Report

Report Number
2027969-2010-02219
Event Type
Malfunction
Date Received
December 20, 2010
Date of Event
November 24, 2010
Report Date
December 20, 2010
Manufacturer
ALERE SAN DIEGO, INC
Product Code
GJS
PMA / PMN Number
021923
Removal / Correction Number
NI
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
OK, US
Reporter Occupation
NOT APPLICABLE

Narratives

Additional Manufacturer Narrative · 1

DISCREPANT RESULTS (ACCURACY) COMPARISON OF INRATIO TEST WITH LAB RESULTS PROVIDED BY END-USER AT TIME COMPLAINT WAS FILED: INRATIO: 1.2, REFERENCE: 2.1, MEAN: 1.65, CONFIDENCE LIMITS: 1.2-2.3. INRATIO PRECISION DATA PROVIDED BY END-USER: 1ST INR: 1.2, 2ND INR 1.2, MEAN: 1.20, SD: 0.00, %CV: 0.00. ANALYSIS OF CUSTOMER'S DATA REVEALED THAT BOTH INRATIO VERSUS REFERENCE AND REPEATED INRATIO TEST RESULT COMPARISONS MEET ACCURACY AND PRECISION CRITERIA. CUSTOMER'S RESULTS ARE NOT CONSIDERED DISCREPANT WITHIN THE CONTEXT OF THE DOCUMENTED VARIABILITY FOR INR TESTING. NO PRODUCT IS EXPECTED TO BE RETURNED. NO FURTHER INVESTIGATION REQUIRED. AS REVIEWED ON 12/20/2010, TWENTY-SEVEN DISCREPANT RESULT COMPLAINTS WERE REPORTED FOR LOT #225937 YIELDING A COMPLAINT RATE OF 0.008%. DUE TO THIS LOW OCCURRENCE RATE, BELOW THE ACTION THRESHOLDS MONITORED BY QA FOR CORRECTIVE ACTION (>0.07%), NO FURTHER ACTION IS REQUIRED AT THIS TIME. THIS ISSUE WILL BE SUBJECT TO TRACKING AND TRENDING. NO CORRECTIVE ACTION REQUIRED AT THIS TIME AS NO PRODUCT DEFICIENCY WAS ESTABLISHED.

Description of Event or Problem · 1

CALLER ALLEGED DISCREPANT RESULTS COMPARED WITH THE LAB. RESULTS AS FOLLOWS: DATE: (B)(6) 2010, INRATIO: 1.2, LAB: 2.1. ON (B)(6) 2010, PT REC'D 1.2 INR UPON REPEAT TESTING WITH INRATIO METER. PT'S THERAPEUTIC RANGE: 2.0-3.0 INR.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO PROTHROMBIN TIME TEST GJS ALERE SAN DIEGO, INC 100139 225937

Patients

Seq Age Sex Outcome Treatment
1 NI