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Application and insights on patient-based real-time quality control: detecting undetected errors in internal quality control through daily antibody positivity rate analysis

Chaochao Ma, Qi Zhang, Yingying Hu, Wenyi Ding, Liangyu Xia, Ling Qiu

Short communications, Volume 35, Articles ahead of print

KEYWORDS: Patient-Based Real-Time Quality Control; daily positivity rate; thyroid peroxidase antibody; systematic error; quality assessment

https://doi.org/10.11613/BM.2025.020801

Use of Hoteling’s T multivariate control chart for effective monitoring of a laboratory test with a 3-level quality control scheme

Cristiano Ialongo

Original articles, Volume 35, Articles ahead of print

KEYWORDS: quality control; analytical performance specification; multivariate analysis; analytical process

https://doi.org/10.11613/BM.2025.020701

Implementation of new Westgard rules suggested by the Westgard Advisor software for five immunological parameters

Lisa Cristelli, Francesca Occhipinti, Daniel Tumiatti, De Luisi Antonia, Erika Jani, Massimo Daves

Original articles, Volume 35, February, Issue 1

KEYWORDS: laboratory organization and management; quality control; validation; evaluation; Westgard rules

https://doi.org/10.11613/BM.2025.010701

Comparative study on the quality control effectiveness of AI-PBRTQC and traditional PBRTQC model in identifying quality risks

Xucai Dong, Xi Meng, Bin Li, Dongmei Wen, Xianfei Zeng

Original articles, Volume 34, June, Issue 2

KEYWORDS: patient-based real-time quality control; exponentially weighted moving average; quality risk

https://doi.org/10.11613/BM.2024.020707

Practical application of the patient data-based quality control method: the potassium example

Yan Zhang, Hua-Li Wang, Ye-Hong Xie, Da-Hai He, Chao-Qiong Zhou, Li-Rui Kong

Short communications, Volume 34, February, Issue 1

KEYWORDS: daily average value; patient-generated data; potassium; quality control

https://doi.org/10.11613/BM.2024.010901

Point of care testing in Croatia: a survey of the Working group for point of care testing of the Croatian society of medical biochemistry and laboratory medicine

Ivana Baršić Lapić, Lara Milevoj Kopčinović, Nedjeljka Ruljančić, Marija Grdić Rajković, Maja Kuštro

Original articles, Volume 34, February, Issue 1

KEYWORDS: point of care; questionnaires; quality control; standardization

https://doi.org/10.11613/BM.2024.010703

Reply to letters to the editor entitled “Bias, the unfinished symphony” and “Bias estimation for Sigma metric calculation: arithmetic mean versus quadratic mean”

Murat Keleş

Letter to the Editor/Reply, Volume 33, June, Issue 2

KEYWORDS: biochemistry; biological variation; quality control

https://doi.org/10.11613/BM.2023.020401

Inter-rater reliability assessment for the new-born screening quality assurance

Leonor Guiñón, Anna Soler, Rosa María López, Sonia Pajares, José Manuel González de Aledo, Ana Argudo-Ramírez, José Luis Marín, Judit García-Villoria, Ángeles Sahuquillo, Luisa Alvarez

Short communication, Volume 32, October, Issue 3

KEYWORDS: accreditation; extra-analytical phase; new-born screening; quality control

https://doi.org/10.11613/BM.2022.030901

A practical approach example to measurement uncertainty: Evaluation of 26 immunoassay parameters

Rabia Tan, Mustafa Yilmaz, Yusuf Kurtulmuş

Original articles, Volume 32, October, Issue 3

KEYWORDS: immunoassay; quality control; uncertainty

https://doi.org/10.11613/BM.2022.030705

Integrating moving average control procedures into the risk-based quality control plan in small-volume medical laboratories

Vera Lukić, Svetlana Ignjatović

Original articles, Volume 32, June, Issue 2

KEYWORDS: risk-based quality control plan; QC frequency; run size; patient-risk sigma metrics; patient-based real-time quality control

https://doi.org/10.11613/BM.2022.020711

Moving average procedures as an additional tool for real-time analytical quality control: challenges and opportunities of implementation in small-volume medical laboratories

Vera Lukić, Svetlana Ignjatović

Original articles, Volume 32, February, Issue 1

KEYWORDS: quality control; moving average; patient-based real-time quality control; laboratory information system

https://doi.org/10.11613/BM.2022.010705

Evaluation of the clinical chemistry tests analytical performance with Sigma Metric by using different quality specifications - Comparison of analyser actual performance with manufacturer data

Murat Keleş

Original articles, Volume 32, February, Issue 1

KEYWORDS: Six Sigma; total allowable error; quality control; biological variation

https://doi.org/10.11613/BM.2022.010703

The importance of regulation (EU) 2017/746 for quality control in medical laboratories

Cristiano Ialongo, Maria Sapio, Leda Elisabetta Antetomaso, Antonio Angeloni

Editorial, Volume 32, February, Issue 1

KEYWORDS: quality control; traceability; uncertainty

https://doi.org/10.11613/BM.2022.010301

Impact of combining data from multiple instruments on performance of patient-based real-time quality control

Qianqian Zhou, Tze Ping Loh, Tony Badrick, Chun Yee Lim

Original Articles, Volume 31, June, Issue 2

KEYWORDS: quality control; laboratory management; moving median; moving average; average of normal

https://doi.org/10.11613/BM.2021.020705

Estimation of the measurement uncertainty and practical suggestion for the description of the metrological traceability in clinical laboratories

Raúl Rigo-Bonnin, Noelia Díaz-Troyano, Laura García-Tejada, Albert Marcè-Galindo, Míriam Valbuena-Asensio, Francesca Canalias

Review, Volume 31, February, Issue 1

KEYWORDS: biostatistics; quality control; standardization; traceability; uncertainty

https://doi.org/10.11613/BM.2021.010501

Patient-based quality control for glucometers: using the moving sum of positive patient results and moving average

Chun Yee Lim, Tony Badrick, Tze Ping Loh

Original Articles, Volume 30, June, Issue 2

KEYWORDS: laboratory management; quality control; moving average; moving sum of positive patient results; patient-based quality control

https://doi.org/10.11613/BM.2020.020709

The results of external quality assessment programme on urine leukocyte and erythrocyte counting in Poland

Agnieszka Ćwiklińska, Robert Kowalski, Barbara Kortas-Stempak, Agnieszka Kuchta, Aleksandra Fijałkowska, Gabriela Bednarczuk, Maciej Jankowski

Original Articles, Volume 30, June, Issue 2

KEYWORDS: erythrocytes; leukocytes; quality control; standardisation; urine

https://doi.org/10.11613/BM.2020.020707

Analytical performance assessment and improvement by means of the Failure mode and effect analysis (FMEA)

Leonor Guiñón, Anna Soler, Mónica Gisell Díaz, Rosa María Fernández, Nayra Rico, Josep Lluís Bedini, Aurea Mira, Luisa Alvarez

Original papers, Volume 30, June, Issue 2

KEYWORDS: risk management; FMEA; sigma metric; analytical performance; quality control

https://doi.org/10.11613/BM.2020.020703

The top-down approach to measurement uncertainty: which formula should we use in laboratory medicine?

Flávia Martinello, Nada Snoj, Milan Skitek, Aleš Jerin

Lessons in biostatistics, Volume 30, June, Issue 2

KEYWORDS: measurement uncertainty; bias; uncertainty; total error; quality control

https://doi.org/10.11613/BM.2020.020101

Optimizing moving average control procedures for small-volume laboratories: can it be done?

Vera Lukić, Svetlana Ignjatović

Original Articles, Volume 29, October, Issue 3

KEYWORDS: quality control; moving average; bias detection simulation; MA Generator software

https://doi.org/10.11613/BM.2019.030710

Haematology specimen acceptability: a national survey in Chinese laboratories

Yuanyuan Ye, Wei Wang, Haijian Zhao, Falin He, Kun Zhong, Shuai Yuan, Yuxuan Du, Bingquan Chen, Zhiguo Wang

Original Papers, Volume 28, October, Issue 3

KEYWORDS: quality indicator; preanalytical phase; quality control; haematology; survey

https://doi.org/10.11613/BM.2018.030704

Evaluating analytical quality in clinical biochemistry laboratory using Six Sigma

Xuehui Mao, Jing Shao, Bingchang Zhang, Yong Wang

Short Communications: Special issue on Six Sigma metrics, Volume 28, June, Issue 2

KEYWORDS: Sigma metrics; total allowable error; quality control; bias

https://doi.org/10.11613/BM.2018.020904

Comprehensive evaluation of the internal and external quality control to redefine analytical quality goals

Beatriz Varela, Gonzalo Pacheco

Original Papers: Special issue on Six Sigma metrics, Volume 28, June, Issue 2

KEYWORDS: total quality management; quality control; bias; laboratory proficiency testing/methods; clinical chemistry test

https://doi.org/10.11613/BM.2018.020710

Sigma metrics for assessing the analytical quality of clinical chemistry assays: a comparison of two approaches

Xiuzhi Guo, Tianjiao Zhang, Xuehui Gao, Pengchang Li, Tingting You, Qiong Wu, Jie Wu, Fang Zhao, Liangyu Xia, Ermu Xu, Ling Qiu, Xinqi Cheng

Original Papers: Special issue on Six Sigma metrics, Volume 28, June, Issue 2

KEYWORDS: Six Sigma; proficiency testing; internal quality control; allowable total error

https://doi.org/10.11613/BM.2018.020708

National survey on internal quality control for tumour markers in clinical laboratories in China

Wei Wang, Kun Zhong, Shuai Yuan, Falin He, Yuxuan Du, Zhehui Hu, Zhiguo Wang

Original Papers, Volume 28, June, Issue 2

KEYWORDS: internal quality control; tumour marker; imprecision; biological variation

https://doi.org/10.11613/BM.2018.020702

Analytical Sigma metrics: A review of Six Sigma implementation tools for medical laboratories

Sten Westgard, Hassan Bayat, James O Westgard

Review: Special issue on Six Sigma metrics, Volume 28, June, Issue 2

KEYWORDS: Six Sigma metrics; quality control frequency; OPSpecs chart; method decision chart; Westgard rules

https://doi.org/10.11613/BM.2018.020502

Special issue on Six Sigma metrics - experiences and recommendations

Sten Westgard, Hassan Bayat, James O Westgard

Editorial: Special issue on Six Sigma metrics, Volume 28, June, Issue 2

KEYWORDS: Six Sigma; Sigma metrics; quality control

https://doi.org/10.11613/BM.2018.020301

Missed detection of significant positive and negative shifts in gentamicin assay: implications for routine laboratory quality practices

Gus Koerbin, Jiakai Liu, Alex Eigenstetter, Chin Hon Tan, Tony Badrick, Tze Ping Loh

Original Papers, Volume 28, February, Issue 1

KEYWORDS: error; moving average; bias; quality control; quality assurance

https://doi.org/10.11613/BM.2018.010705

Evaluation of staff performance and interpretation of the screening program for prevention of thalassemia

Simaporn Prommetta, Kanokwan Sanchaisuriya, Goonnapa Fucharoen, Supawadee Yamsri, Attawut Chaiboonroeng, Supan Fucharoen

Original papers, Volume 27, June, Issue 2

KEYWORDS: laboratory proficiency testing; thalassemia; quality control

https://doi.org/10.11613/BM.2017.040

Analytical robustness of nine common assays: frequency of outliers and extreme differences identified by a large number of duplicate measurements

Stefanie Neubig, Anne Grotevendt, Anders Kallner, Matthias Nauck, Astrid Petersmann

Original Papers, Volume 27, February, Issue 1

KEYWORDS: clinical chemistry tests; humans; reproducibility of results; analytical quality; quality control

https://doi.org/10.11613/BM.2017.021

Timeliness “at a glance”: assessing the turnaround time through the six sigma metrics

Cristiano Ialongo, Sergio Bernardini

Original papers, Volume 26, February, Issue 1

KEYWORDS: turnaround time; statistical data analysis; quality control; healthcare quality indicator; postanalytical phase

https://doi.org/10.11613/BM.2016.010

Continuous quality control of the blood sampling procedure using a structured observation scheme

Tine Lindberg Seemann, Mads Nybo

Original papers, Volume 26, October, Issue 3

KEYWORDS: observation; phlebotomy; preanalytical phase; quality control

https://doi.org/10.11613/BM.2016.037

In vitro diagnostic company recalls and medical laboratory practices: an Italian case

Gabriel Lima-Oliveira, Giuseppe Lippi, Gian Luca Salvagno, Giorgio Brocco, Gian Cesare Guidi

Case Report, Volume 25, June, Issue 2

KEYWORDS: clinical laboratory techniques; patient safety; laboratory variability; reference standards; quality control; parathyroid hormone

https://doi.org/10.11613/BM.2015.028

National survey on intra-laboratory turnaround time for some most common routine and stat laboratory analyses in 479 laboratories in China

Yang Fei, Rong Zeng, Wei Wang, Falin He, Kun Zhong, Zhiguo Wang

Research Article, Volume 25, June, Issue 2

KEYWORDS: quality indicators; quality control; clinical laboratory services

https://doi.org/10.11613/BM.2015.021

Quality in coagulation and haemostasis testing

Roslyn Bonar, Emmanuel J. Favaloro, Dorothy M. Adcock

Special issue, Volume 20, June, Issue 2

KEYWORDS: quality; haemostasis; coagulation; internal quality control; external quality assurance

https://doi.org/10.11613/BM.2010.023

The role of the External Quality Assessment

Laura Sciacovelli, Sandra Secchiero, Lorena Zardo, Mario Plebani

Special issue, Volume 20, June, Issue 2

KEYWORDS: External Quality Assessment; proficiency testing; laboratory performance; analytical quality; analytical quality control

https://doi.org/10.11613/BM.2010.019

Quality in the analytical phase

Oswald Sonntag

Special issue, Volume 20, June, Issue 2

KEYWORDS: analytical errors; patient safety; clinical laboratory; quality control; drug interference; calibration; paraprotein; reference interval

https://doi.org/10.11613/BM.2010.017

A model for results comparison on two different biochemistry analyzers in laboratory accredited according to the ISO 15189

Marijana Miler, Ana-Maria Simundic, Mario Štefanović, Dragica Ferenec-Ružić, Marina Kvaternik, Elizabeta Topić, Nada Vrkić

Original papers, Volume 19, October, Issue 3

KEYWORDS: accreditation; analyzer comparison; internal quality control; laboratory error

https://doi.org/10.11613/BM.2009.027

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