Browsing Bergen Open Research Archive by Author "Stavelin, Anne"
Now showing items 1-8 of 8
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Aggregated data from the same laboratories participating in two glucose external quality assessment schemes show that commutability and transfers of values to control materials are decisive for the biases found
Gidske, Gro; Sandberg, Sverre; Fauskanger, Pernille Kjeilen; Pelanti, Jonna; Tollånes, Mette Christophersen; Solsvik, Anne Elisabeth; Sølvik, Una Ørvim; Vie, Wenche Sletbakk; Stavelin, Anne (Journal article; Peer reviewed, 2023)Objectives We report the results of glucose measurements performed during one year by the same measurement procedures (MPs) in 58 Norwegian hospital laboratories using control materials provided by external quality ... -
Analytical quality control of INR measurements in primary care
Stavelin, Anne (Doctoral thesis, 2013-11-29)In Norway, most patients on oral anticoagulation with warfarin are treated in primary care. The treatment is monitored with the laboratory method prothrombin time, expressed as International normalized Ratio (INR). It is ... -
Commutability of a whole-blood external quality assessment material for point-of-care C-reactive protein, glucose, and hemoglobin testing
Bukve, Tone; Sandberg, Sverre; Vie, Wenche S.; Sølvik, Una Ørvim; Christensen, Nina Gade; Stavelin, Anne (Peer reviewed; Journal article, 2019)BACKGROUND: The optimal situation in external quality assessment (EQA) is to use commutable materials. No previous study has examined the commutability of a whole-blood material for point-of-care (POC) testing. The aim of ... -
External quality assessment of point-of-care International Normalized Ratio (INR) testing in Europe
Stavelin, Anne; Meijer, Piet; Kitchen, Dianne; Sandberg, Sverre (Peer reviewed; Journal article, 2011-09)Background: Point-of-care testing (POCT) of prothrombin time, expressed as International Normalized Ratio (INR), is widely used to monitor patients in oral anticoagulation treatment. Guidelines recommend that POCT users ... -
A national surveillance program for evaluating new reagent lots in medical laboratories
Solsvik, Anne Elisabeth; Kristoffersen, Ann-Helen; Sandberg, Sverre; Gidske, Gro; Stavelin, Anne; Eikeland, Joakim; Amundsen, Erik Koldberg (Journal article; Peer reviewed, 2022)Objectives Differences between laboratory results attributable to the use of different reagent lots can potentially affect the diagnosis and monitoring of patients. To minimize patient risks, all laboratories should verify ... -
Performance of Afinion HbA1c measurements in general practice as judged by external quality assurance data
Stavelin, Anne; Flesche, Kristine; Tollaanes, Mette; Christensen, Nina Gade; Sandberg, Sverre (Journal article; Peer reviewed, 2020)Background: It has been debated whether point-of care (POC) glycated hemoglobin (HbA1c) measurements methods can be used for diagnosing persons with diabetes mellitus. The aim of this study was to evaluate the analytical ... -
Point-of-care testing in primary healthcare: a scoring system to determine the frequency of performing internal quality control
Gidske, Gro; Sandberg, Sverre; Fossum, Anne Lise; Binder, Stein Bjarne; Langsjøen, Eva Camilla; Solsvik, Anne E.; Stavelin, Anne (Journal article; Peer reviewed, 2022)Objectives Internal quality control (IQC) plays an important role in quality assurance in laboratory medicine. However, there is no universal consensus or guideline on when and how IQC should be analyzed on point-of-care ... -
Pre-analytical practices for routine coagulation tests in European laboratories. A collaborative study from the European Organisation for External Quality Assurance Providers in Laboratory Medicine (EQALM)
Kristoffersen, Ann-Helen; Stavelin, Anne; Ajzner, Éva; Kristensen, Gunn Berit Berge; Sandberg, Sverre; van Blerk, Marjan; Kitchen, Steve; Kesseler, Dagmar; Woods, Timothy A.L.; Meijer, Piet (Peer reviewed; Journal article, 2019)Background: Correct handling and storage of blood samples for coagulation tests are important to assure correct diagnosis and monitoring. The aim of this study was to assess the pre-analytical practices for routine coagulation ...