CUSTOMER ALLEGES FALSE NEGATIVE D-DIMER RESULTS WITH 3 SAMPLES WHILE RUNNING A PLASMA TO WHOLE BLOOD CORRELATION STUDY: SAMPLE NUMBER: (B)(6), PLASMA: 599, WHOLE BLOOD: 296. SAMPLE NUMBER: (B)(6), PLASMA: 444, WHOLE BLOOD: 252. SAMPLE NUMBER: (B)(6), PLASMA: 481, WHOLE BLOOD: 254. CUSTOMER USES A CUTOFF OF 400 TO DETERMINE POSITIVE D-DIMER RESULTS: THIS CORRELATION STUDY WAS RUN USING 2 TRIAGE METERS. RESULTS FROM THE OTHER METER (NUMBER 66704) HAVE BEEN REPORTED ON MDR NUMBER 2027969-2012-00534.