FDA Adverse Event Malfunction Summary report: N

INRATIO 2

MDR report key: 2201053 · Received July 1, 2011

Report

Report Number
2027969-2011-01452
Event Type
Malfunction
Date Received
July 1, 2011
Date of Event
June 7, 2011
Report Date
July 1, 2011
Manufacturer
ALERE SAN DIEGO, INC.
Product Code
GJS
PMA / PMN Number
K072727
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
PA, 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: DATE: (B)(6) 2011, INRATIO METER = 2.80, REFERENCE = 2.40, MEAN = 2.60, CONFIDENCE LIMITS = 1.6 - 3.4. THE MEAN OF THE INRATIO METER AND COMPARATIVE SYSTEM INR WERE CALCULATED. BOTH INRATIO AND REFERENCE VALUES ARE WITHIN THE CONFIDENCE LIMITS FOR INR TESTING. THE RESULTS ARE NOT CONSIDERED DISCREPANT WITHIN THE CONTEXT OF THE DOCUMENTED VARIABILITY FOR INR TESTING. NO FURTHER INVESTIGATION IS REQUIRED. CONCLUSION: ANALYSIS OF THE CLIENT'S DATA FROM INRATIO AND REFERENCE TESTS REVEALED THAT TEST RESULT COMPARISON MET ACCURACY CRITERIA. CUSTOMER'S RESULTS ARE NOT CONSIDERED DISCREPANT WITHIN THE CONTEXT OF THE DOCUMENTED VARIABILITY FOR INR TESTING. (B)(4). DUE TO THIS LOW OCCURRENCE RATE, BELOW THE ACTION THRESHOLDS MONITORED BY QA FOR CORRECTIVE ACTION (B)(4), 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) 2011, INRATIO: 2.8, LAB: 2.4. TARGET INR IS 2.5 - 3.5.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO 2 PROTHROMBIN TIME TEST GJS ALERE SAN DIEGO, INC. 100071 243394

Patients

Seq Age Sex Outcome Treatment
1