FDA Adverse Event Malfunction Summary report: N

INRATIO

MDR report key: 1589160 · Received January 11, 2010

Report

Report Number
2027969-2010-00021
Event Type
Malfunction
Date Received
January 11, 2010
Date of Event
December 15, 2009
Report Date
January 11, 2010
Manufacturer
BIOSITE INCORPORATED
Product Code
JPA
PMA / PMN Number
K021923
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
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) 2009, INRATIO METER = 2.4 INR, REFERENCE = 3.4 INR, MEAN = 2.90, CONFIDENCE LIMITS: 1.8-4.2. 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. MEAN CALCULATION FROM COMPARISON TEST DATA PROVIDED BY END-USER REVEALED BOTH INRATIO AND LAB VALUES ARE WITHIN THE CONFIDENCE LIMITS FOR INR TESTING. METER AND STRIPS WERE NOT EXPECTED TO BE RETURNED. PT'S CONDITION MAY AFFECT INRATIO TEST RESULT. AS OF 01/06/2010, 9 DISCREPANT RESULT COMPLAINTS WERE REPORTED FOR LOT #220375 YIELDING A COMPLAINT RATE OF 0.002%. 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. ONGOING TRENDING SHALL BE PERFORMED TO DETERMINE IF FURTHER ACTION IS WARRANTED. CORRECTIVE ACTION NOT REQUIRED AT THIS TIME.

Description of Event or Problem · 1

CALLER ALLEGED DISCREPANT RESULTS COMPARED WITH THE LAB. RESULTS AS FOLLOWS: DATE: (B) (6) 2009, INRATIO: 2.4, LAB: 3.4.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO PROTHROMBIN TIME TEST JPA BIOSITE INCORPORATED 100071 220375

Patients

Seq Age Sex Outcome Treatment
1