FDA Adverse Event Malfunction Summary report: N

ARCHITECT TOTAL B-HCG

MDR report key: 3050172 · Received April 10, 2013

Report

Report Number
3005094123-2013-00030
Event Type
Malfunction
Date Received
April 10, 2013
Date of Event
February 1, 2013
Report Date
February 14, 2013
Manufacturer
A.I.D.D LONGFORD
Product Code
DHA
PMA / PMN Number
K983424
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
FR
Reporter Occupation
OTHER HEALTH CARE PROFESSIONAL

Narratives

Additional Manufacturer Narrative · 1

(B)(4). A PRODUCT DEFICIENCY HAS BEEN IDENTIFIED. WITH A UNIQUE COMBINATION OF INSTRUMENT AND REAGENT CONDITIONS THERE IS A POTENTIAL FOR SAMPLE CARRYOVER WHICH CAN RESULT IN FALSELY ELEVATED B-HCG CONCENTRATIONS ON THE ARCHITECT I1000SR SYSTEM. NEGATIVE SAMPLES HAVE RETURNED BOTH POSITIVE AND GREY ZONE B-HCG RESULTS WHEN A HIGH CONCENTRATION B-HCG SAMPLE IS ASSESSED PRIOR TO THE NEGATIVE SAMPLE WITH ARCHITECT TOTAL B-HCG (LIST NUMBER 7K78/6C21) ON AN I1000SR INSTRUMENT WHICH ALSO UTILIZES THE ARCHITECT RUBELLA IGG (LIST NUMBER 6C17) ASSAY AND/OR THE ARCHITECT HAVAB-IGG ASSAY (LIST NUMBER 6C29). THIS OCCURS DUE TO REAGENT MEDIATED SAMPLE CARRYOVER OF HIGH B-HCG SAMPLES CAUSED BY THE ARCHITECT RUBELLA IGG ASSAY SPECIFIC DILUENT COMPONENT OR THE ARCHITECT HAVAB-IGG MICORPARTICLE COMPONENT ON AN ARCHITECT I1000SR SYSTEM. ARCHITECT RUBELLA IGG IS CURRENTLY BEING REFORMULATED.

Description of Event or Problem · 1

THE CUSTOMER STATED AN ARCHITECT I1000SR ANALYZER GENERATED A FALSE POSITIVE BHCG RESULT OF 33.86 FOR ONE PATIENT SAMPLE. THE FALSE POSITIVE BBCG RESULT WAS NOT REPORTED OUTSIDE THE LABORATORY AND THERE WAS NO ADVERSE IMPACT TO PATIENT MANAGEMENT REPORTED.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
153015 ARCHITECT TOTAL B-HCG DHA A.I.D.D LONGFORD 20904JN00

Patients

Seq Age Sex Outcome Treatment
1 ARCHITECT I1000SR ANALYZER| LN 01L86-01 SN (B)(4)