Description of Event or Problem · 1
SITUATION: THE HIGH RANGE ACT+ CUVETTES THAT WE USE WITH THE ACCRIVA HEMOCHRON SIGNATURE ELITE INSTRUMENTS FOR ACTIVATED CLOTTING TIME (ACT) IN PERFUSION HAVE A SERIOUS ISSUE THAT MAY REQUIRE A CHANGE IN METHODOLOGY. BACKGROUND: THE PERFUSIONISTS ARE REPORTING FREQUENT RANDOM ERRORS. IN SOME CUVETTES, THE SAMPLE DOES NOT SEEM TO GENERATE A CLOT, RESULTING IN AN "OUT OF RANGE HIGH", WHICH IS INTERPRETED AS >1005. WHEN NEW SPECIMENS ARE COLLECTED, THE NEW RESULTS DROP DOWN TO THE EXPECTED 450-550 RANGE. ACCRIVA AT FIRST SAID THIS WAS A SAMPLING ISSUE, HOWEVER, PERFUSION WASTES THE PROPER AMOUNT OF BLOOD, AND FURTHER, THEY DRAW SAMPLES FROM A DIFFERENT PORT THAN THE ONE THEY USE TO GIVE HEPARIN. ONE OF THE PERFUSIONISTS SAID THAT SHE HAD SEEN THIS BEFORE MANY TIMES AT OTHER HOSPITALS.ASSESSMENT: AFTER FURTHER INVESTIGATION, I ESTIMATE THAT THIS IS HAPPENING IN APPROXIMATELY 4% OF CUVETTES, ACROSS ALL CUVETTE LOTS, INSTRUMENT SERIAL NUMBERS, AND OPERATORS. I CALLED ACCRIVA TO REPORT THE ISSUE AGAIN AND THEY ARE NOW SAYING IT IS A KNOWN PROBLEM WITH ACT+ AND THEY HAVE ESCALATED OUR CASE. WE HAVE NOT HEARD REPORTS OF THIS FOR THE LOW-RANGE ACT-LR CUVETTE USED IN THE OTHER AREAS. WE ARE COLLECTING WEEKLY DATA FOR ACCRIVA SUCH AS HEPARIN DOSING, WASTE AMOUNTS, AND DRAW SITES.RECOMMENDATION: WE WILL BE SWITCHING METHODOLOGY, AT LEAST TEMPORARILY AND AT LEAST IN PERFUSION (THE ONLY UNIT USING THE ACT+ CUVETTES STAT FOR THOSE HIGH DOSE HEPARIN PROCEDURES). WE WILL BEGIN TRAINING STAFF AND VALIDATING ACT ON ABBOTT I- AS EARLY AS NEXT WEEK. I-STAT HAS AN ACT CARTRIDGE THAT COVERS BOTH THE LOW-DOSE AND HIGH-DOSE HEPARIN RANGES UP TO 1000SEC. OUR ABBOTT REP GAVE A DEMO TO US THE OTHER DAY. WE HAVE FIVE I-STATS CURRENTLY IN THE POCT SYSTEM ALTHOUGH NOT CURRENTLY IN USE. WE DON'T HAVE A RALS MODULE FOR THIS INSTRUMENT SO EVERYTHING FOR COMPLIANCE WILL BE DONE ON PAPER, AT LEAST FOR NOW.MANUFACTURER RESPONSE FOR ACT DEVICE, ACCRIVA (PER SITE REPORTER).======================STILL INVESTIGATING-NEED MORE INPUT FROM US.