FDA Adverse Event Malfunction Summary report: N

INRATIO

MDR report key: 1894793 · Received November 5, 2010

Report

Report Number
2027969-2010-01894
Event Type
Malfunction
Date Received
November 5, 2010
Date of Event
October 12, 2010
Report Date
November 5, 2010
Manufacturer
ALERE SAN DIEGO, INC.
Product Code
GJS
PMA / PMN Number
K021923
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
ME, US
Reporter Occupation
NURSE

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) 2010, INRATIO METER = 3.9. REFERENCE = 2.7. MEAN = 3.3. CONFIDENCE LIMITS = 1.9 - 4.6. 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. 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. AS OF 11/05/2010, 1 DISCREPANT RESULT COMPLAINT WAS REPORTED FOR LOT # 235740 YIELDING A COMPLAINT RATE OF 0.000478%. 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: 3.9, LAB: 2.7. THESE TESTS WERE TAKEN 10 MINUTES APART.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO PROTHROMBIN TIME TEST GJS ALERE SAN DIEGO, INC. 100139 235740

Patients

Seq Age Sex Outcome Treatment
1