FDA Adverse Event Malfunction Summary report: N

INRATIO

MDR report key: 1610788 · Received February 1, 2010

Report

Report Number
2027969-2010-00123
Event Type
Malfunction
Date Received
February 1, 2010
Date of Event
January 15, 2010
Report Date
February 1, 2010
Manufacturer
BIOSITE INCORPORATED
Product Code
JPA
PMA / PMN Number
021923
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
WA, 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: NONE, INRATIO: 3.5 INR, REFERENCE: 2.4 INR, MEAN 2.95, CONFIDENCE LIMITS: 1.8-4.2. DATE: NONE, INRATIO: 3.9 INR, REFERENCE: 2.8 INR, MEAN: 3.35, CONFIDENCE LIMITS: 1.9-4.6. TESTS WERE PERFORMED WITHIN MINUTES OF EACH OTHER 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. DATA ANALYSIS OF MEAN CALCULATION FROM COMPARISON TEST DATA PROVIDED BY END-USER REVEALED BOTH INRATIO AND LAB VALUES ARE WITHIN THE CONFIDENCE LIMITS FOR INR TESTING. THERE IS NO SUFFICIENT INFO TO DETERMINE THE ROOT CAUSE OF CUSTOMER'S TEST RESULT DISCREPANCY. AS OF 01/28/2010, 3 DISCREPANT RESULTS COMPLAINT WAS REPORTED FOR LOT #221726 YIELDING A COMPLAINT RATE OF 0.001%. 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. ON GOING TRENDING SHALL BE PERFORMED TO DETERMINE IF FURTHER ACTION IS WARRANTED. NO CORRECTIVE ACTION IS REQUIRED AT THIS TIME.

Description of Event or Problem · 1

CALLER ALLEGED DISCREPANT RESULTS COMPARED WITH THE LAB. RESULTS AS FOLLOWS: DATE: N/G, INRATIO: 3.5, LAB: 2.4. DATE: (B) (6) 2010, INRATIO: 3.9, LAB: 2.8.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO PROTHROMBIN TIME TEST JPA BIOSITE INCORPORATED 100139 221726

Patients

Seq Age Sex Outcome Treatment
1