FDA Adverse Event Malfunction Summary report: N

INRATIO

MDR report key: 812518 · Received January 26, 2007

Report

Report Number
2954730-2007-00038
Event Type
Malfunction
Date Received
January 26, 2007
Date of Event
January 19, 2007
Report Date
January 22, 2007
Manufacturer
HEMOSENSE, INC.
Product Code
JPA
Product Problem
Yes
Report Source
Manufacturer report
Reporter Occupation
UNKNOWN

Narratives

Additional Manufacturer Narrative · 1

DISCREPANT RESULTS (ACCURACY) COMPARISON OF INRATIO TEST WITH LAB RESULTS PROVIDED BY END-USER AT TIME COMPLAINT WAS FILED: SEE SCANNED TABLE. PER INTERNAL PROCEDURE, THE MEAN OF THE INRATIO METER AND COMPARATIVE SYSTEM INR WERE CALCULATED. FOR THE FIRST AND THIRD SETS OF DATA, THE INRATIO VALUES WERE OUTSIDE THE CONFIDENCE LIMITS FOR INR TESTING. PRODUCTS WILL BE TESTED. INRATIO PRECISION DATA PROVIDED BY END-USER LOT 060201: FIRST TEST INR = 1.6, SECOND TEST INR = 1.9, THIRD TEST INR = 1.5, MEAN = 1.66; SD = 0.21; %CV = 12%. THE %CV IS LESS THAN OR EQUAL TO 20%. PER INTERNAL PROCEDURE, THE PRECISION PASSES THE CRITERIA FOR PRECISION. THE TEST IS CONSIDERED PRECISE AND NO FURTHER TESTING IS REQUIRED AT THIS TIME.

Description of Event or Problem · 1

CALLER ALLEGED DISCREPANT RESULTS COMPARED WITH THE LAB. RESULTS AS FOLLOWS: SEE SCANNED TABLE. FIRST TEST INR = 1.6. SECOND TEST INR = 1.9. THIRD TEST INR =1.5

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 INRATIO PROTHROMBIN TIME TEST JPA HEMOSENSE, INC. * 060201

Patients

Seq Age Sex Outcome Treatment
1 *