D
Patient 1
A CUSTOMER IN THE (B)(6) REPORTED A NO RESULT (NO GROWTH) FOR AN EXTERNAL QUALITY CONTROL (EQA) SAMPLE (NEQAS DISTRIBUTION 4341 SAMPLE 4569) ON CHROMID? CPS ELITE AGAR (LOT 1006606560). THE EXPECTED RESULT OF THE EQA SAMPLE WAS STAPHYLOCOCCUS SAPROPHYTICUS. WHEN THE CUSTOMER OBTAINED THE RESULTS OF THE NEQAS SURVEY, THEY ASKED FOR A REPEAT SAMPLE. THE CUSTOMER THEN TESTED A SECOND LOT (100666680) OF CHROMID CPS ELITE, AND ALSO CULTURED THE EQA SAMPLE ONTO BLOOD AGAR AND CLED (CYSTINE LACTOSE ELECTROLYTE DEFICIENT) MEDIUM. THE RESULT WAS NO GROWTH ON CHROMID CPS ELITE, WHILE STAPHYLOCOCCUS SAPROPHYTICUS GREW ON BOTH BLOOD AGAR AND CLED. A BIOM?RIEUX INTERNAL INVESTIGATION WILL BE INITIATED.