FDA Adverse Event Malfunction Summary report: N

COBAS INTEGRA CALCIUM

MDR report key: 1871972 · Received October 18, 2010

Report

Report Number
1823260-2010-06170
Event Type
Malfunction
Date Received
October 18, 2010
Date of Event
September 23, 2010
Report Date
October 20, 2010
Manufacturer
ROCHE DIAGNOSTICS CORPORATION
Product Code
CIC
PMA / PMN Number
K963292
Removal / Correction Number
1823260-09/27/10-003-R
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
NY, US
Reporter Occupation
MEDICAL TECHNOLOGIST

Narratives

Additional Manufacturer Narrative · 1

INTERNAL INVESTIGATIONS REVEALED THE PRESENCE OF PRECIPITATE IN REAGENT 2 (R2) OF THE CALCIUM REAGENT LOT. THE ROOT CAUSE FOR THE PRECIPITATION IS STILL UNDER INVESTIGATION. AN URGENT MEDICAL DEVICE REMOVAL NOTICE WAS MAILED OCTOBER 13, 2010 TO ALL CUSTOMERS TO IMMEDIATELY DISCONTINUE USE OF THE CALCIUM REAGENT LOT. CALCIUM DEVIATIONS OF > 20% ABOVE AND BELOW THE REFERENCE RANGE ARE CONSIDERED CRITICAL. THESE DEVIATIONS COULD LEAD TO NON-DETECTION OF A PATHOLOGICAL STATUS OR MAY LEAD TO UNNECESSARY THERAPEUTIC CONSEQUENCES. THE ERRONEOUS BIAS CAUSED BY THIS ASSAY LOT MAY CAUSE PATIENT SAMPLES WITH CRITICALLY HIGH OR CRITICALLY LOW CALCIUM LEVELS TO HAVE RESULTS THAT APPEAR TO BE IN THE NORMAL RANGE. THESE PATIENTS MAY BE AT HIGH RISK FOR MISDIAGNOSIS OF PATHOLOGICAL CONDITIONS ASSOCIATED WITH ABNORMAL CALCIUM LEVELS. INACCURATELY HIGH CALCIUM VALUES MAY LEAD TO AN INCORRECT DIAGNOSIS DEPENDING ON THE BLOOD CALCIUM LEVEL. IN THE WORST CASE, THE WRONG THERAPY MAY BE INITIATED. SUSPECTED HYPERCALCEMIA WOULD MEAN CONFIRMING THE CALCIUM VALUE QUICKLY, AND TREATMENT WOULD OCCUR ACCORDING TO THE CLINICAL PICTURE. A PATIENT NORMALLY SHOWS OBVIOUS SYMPTOMS IF THE CALCIUM VALUE IS >12 MG/DL. IN THE CASE OF INACCURATELY LOW VALUES, THE CALCIUM VALUE MUST BE INTERPRETED TOGETHER WITH OTHER PARAMETERS (E.G., MAGNESIUM, PHOSPHATE, AND PTH). UNNECESSARY FURTHER EXAMINATION AND BLOOD COLLECTION MAY RESULT.

Additional Manufacturer Narrative · 1

IT WAS UNKNOWN IF THE INITIAL REPORTER SENT REPORT TO THE FDA.

Description of Event or Problem · 1

THE CUSTOMER REPORTED THAT THE JAW COATING CAME OFF THE DEVICE AND FELL ONTO PT TISSUE. THIS OCCURRED WITH TWO DEVICES WITHIN THE SAME SURGERY. THERE WAS NO PT INJURY. ADDITIONAL DEVICE USED IN THE PROCEDURE CAN BE FOUND ON MFR REPORT # 1717344-2010-00695.

Description of Event or Problem · 1

THE USER RECEIVED QUESTIONABLE CALCIUM RESULTS FOR PATIENT SAMPLES FROM THE INTEGRA 400 (B)(4). OF THE DATA PROVIDED, THE RESULTS FOR ONE PATIENT SAMPLES WERE DISCREPANT. THE INITIAL RESULT WAS 8.4 MG/DL AND THE REPEAT RESULT WAS 9.2 MG/DL. THE REPEAT RESULTS WERE REPORTED OUTSIDE THE LABORATORY. NO PATIENTS WERE ADVERSELY AFFECTED. THE FIELD SERVICE REPRESENTATIVE DETERMINED THE CAUSE WAS THE REAGENT. HE RAN CHECKS AND PRECISION TESTING ON THE ANALYZER WITH ACCEPTABLE RESULTS.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 COBAS INTEGRA CALCIUM CRESOLPHTHALEIN COMPLEXONE, CALCIUM CIC ROCHE DIAGNOSTICS CORPORATION NA 62601901

Patients

Seq Age Sex Outcome Treatment
1