Journal: Journal of Clinical Laboratory Analysis

Article Title: Assessment of patient based real‐time quality control on comparative assays for common clinical analytes

doi: 10.1002/jcla.24651

Figure Lengend Snippet: Flow chart of (A) PBRTQC procedure and (B) comparative study design. Abbreviation: EWMA, exponentially weighted moving average; LIS, laboratory information system; PBRTQC, patient‐based real‐time quality control

Article Snippet: The International Federation of Clinical Chemistry (IFCC) and the International Council for Clinical Chemistry and Analytical Quality in Laboratory Medicine proposed that patient‐based real‐time quality control (PBRTQC) is a valuable complementary quality control method, having the advantages of lower cost, absence of matrix effects, continuous real‐time monitoring, and higher sensitivity to preanalytical errors.

Techniques: Control

Journal: Journal of Clinical Laboratory Analysis

Article Title: Assessment of patient based real‐time quality control on comparative assays for common clinical analytes

doi: 10.1002/jcla.24651

Figure Lengend Snippet: Graphic illustration of the performance of PBRTQC for potassium (K) by introducing positive (regions framed by solid lines) and negative (regions framed by dashed lines) biased data (A‐F) Detected bias data at truncation limits of 3.2–4.9 mmol/L when λ = 0.01 (A) λ = 0.03 (B) and λ = 0.05 (C) and truncation limits of 2.8–6.2 mmol/L when λ = 0.01 (D) λ = 0.03 (E) and λ = 0.05 (F) Regions framed by solid and dashed lines indicate the introduced negative and positive biased data points, respectively. (G and H) Number of test results affected before error detection at truncation limits of 3.2–4.9 mmol/L when λ = 0.03 (G) and λ = 0.05 (H) The black arrows indicate the error introduction data, and red arrows indicate the error detection data. The horizontal black solid line, gray, yellow, and red dashed lines in the graph represent the mean ± 1, 2, and 3 SD of the EWMA results accumulated in the previous 6 months, respectively. The yellow and red curves of the points indicate the alarm and out‐of‐control data points detected, respectively, which are based on the intellectual QC rules in the AI‐MA platform. Abbreviations: EMWA, exponentially weighted moving average; PBRTQC, patient‐based real‐time quality control; QC, quality control; SD, standard deviation

Article Snippet: The International Federation of Clinical Chemistry (IFCC) and the International Council for Clinical Chemistry and Analytical Quality in Laboratory Medicine proposed that patient‐based real‐time quality control (PBRTQC) is a valuable complementary quality control method, having the advantages of lower cost, absence of matrix effects, continuous real‐time monitoring, and higher sensitivity to preanalytical errors.

Techniques: Control, Standard Deviation