FDA Adverse Event Malfunction Summary report: N

INRATIO

MDR report key: 882198 · Received July 16, 2007

Report

Report Number
2954730-2007-00330
Event Type
Malfunction
Date Received
July 16, 2007
Date of Event
July 13, 2007
Report Date
July 13, 2007
Manufacturer
HEMOSENSE, INC.
Product Code
JPA
Product Problem
Yes
Report Source
Manufacturer report
Reporter Occupation
UNKNOWN

Narratives

Additional Manufacturer Narrative · 1

TS UPDATED THE CASE ON 7/13/2007. DISCREPANT RESULTS (ACCURACY) COMPARISON OF INRATIO TEST WITH LAB RESULTS PROVIDED BY END-USER AT TIME COMPLAINT WAS FILED: DATE 2007- INRATIO 5.2, 3.7, 1.4; LAB 4.5, 2.2, 3.1; MEAN 4.9, 3.0, 2.25; CONFIDENCE LIMITS 2.8 - 7.2, 1.8 - 4.2, 1.4 - 3.1. PER INTERNAL PROCEDURE, THE MEAN OF THE INRATIO METER AND COMPARATIVE SYSTEM INR WERE CALCULATED. BOTH INRATIO AND LAB 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. THEREFORE, FURTHER TESTING IS NOT REQUIRED AT THIS TIME.

Description of Event or Problem · 1

TS UPDATED CASE ON 7/13/2007: CALLER ALLEGES INACCURACY WITH INRATIO. RESULTS AS FOLLOWS: DATE 2007; INRATIO 5.2 - 3.7 AND 1.4; LAB 4.5 - 2.2 AND 3.1.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO PROTHROMBIN TIME TEST JPA HEMOSENSE, INC. NI

Patients

Seq Age Sex Outcome Treatment
1 YR