Description of Event or Problem · 1
USER EXPERIENCED IMPRECISION WITH QC MATERIALS FOR ALT, AST, CREATININE, GLUCOSE, AND POTASSIUM. NO PATIENT SAMPLES WERE INVOLVED. LEVEL ONE OF QC PRODUCED THE FOLLOWING RESULTS: ALT: 22, 23, 22, 22, 39, 22, 23, 23, 22, 23, 22, 22, 22, 23 I/U. GLUCOSE: 74, 77, 74, 70, 74, 100, 77, 62, 76, 77, 79, 78, 80, 79, 74 MG/DL. POTASSIUM: 2.4, 2.4, 2.4, 2.4, 1.2, 3.3, 2.4, 2.3, 2.4, 2.4, 2.4, 2.4, 2.4, 2.4, 2.4 MMOL/L. LEVEL TWO OF QC PRODUCED THE FOLLOWING RESULTS: ALT: 187, 181, 182, 179, 179, 107, 183, 179, 180, 178, 177, 175, 182, 182, 180 I/U. AST: 247, 239, 241, 239, 237, 128, 248, 247, 243, 243, 239, 237, 244, 245, 246 I/U. CREATININE: 5.7, 5.6, 5.7, 6.2, 5.9, 3.5, 6.0, 5.8, 6.0, 6.0, 5.9, 6.0, 6.0, 5.9, 5.9, 5.9 MG/DL. POTASSIUM: 7.2, 7.2, 7.2, 7.2, 7.2, 5.7, 7.2, 7.2, 7.2, 7.2, 7.2, 7.1, 7.1, 7.1, 7.1 MMOL/L. THE FIELD SERVICE REPRESENTATIVE DETERMINED THE CAUSE WAS CONTAMINATION IN THE WASH STATION AND DECONTAMINATED THE ANALYZER. PERFORMANCE TESTS WERE PERFORMED.