Publications 2024

Amundsen EK, Ihle-Hansen H, Kraglund KL, Hagberg G (2024)
Acute ischemic stroke and measurement of apixaban and rivaroxaban: an observational cohort implementation study
Res Pract Thromb Haemost, 8 (1), 102307
DOI 10.1016/j.rpth.2023.102307, PubMed 38314168

Antonsen S, Amundsen EK, Ceder R, Toska K, Tollånes MC, Hansen YB, Nordin G (2024)
History, Implementation and Current Use of the IFCC-IUPAC's Nomenclature for Properties and Units (NPU) Terminology in Denmark, Norway and Sweden
EJIFCC, 35 (3), 154-165
PubMed 39507572

Røed-Undlien H, Schultz NH, Amundsen EK, Wollmann BM, Molden E, Akerkar RR, Bjørnstad JL (2024)
Does in vitro hemolysis affect measurements of plasma apixaban concentration by UPLC-MS and anti-Xa assay?
Int J Lab Hematol, 46 (5), 946-952
DOI 10.1111/ijlh.14311, PubMed 38808488

Røed-Undlien H, Schultz NH, Husebråten IM, Wollmann BM, Akerkar RR, Molden E, Amundsen EK, Bjørnstad JL (2024)
Apixaban removal during emergency surgery for type A acute aortic dissection: a prospective cohort study
Int J Surg, 110 (12), 7782-7790
DOI 10.1097/JS9.0000000000002137, PubMed 39806740

Publications 2023

Gounden V, Banerjee M, Amundsen EK, Serdar MA, Suárez Sánchez CI, Strain C, Kinniburgh D, Zhao Z (2023)
Linking Laboratory Testing to Clinical Outcomes: Bridging the Gap through Outcome-Based Studies in Laboratory Medicine
Clin Chem, 69 (11), 1317-1321
DOI 10.1093/clinchem/hvad132, PubMed 37688514

Nome RV, Amundsen EK, Tvedt THA, Fenstad MH, Øie E (2023)
[How often should blood tests be repeated?]
Tidsskr Nor Laegeforen, 143 (1)
DOI 10.4045/tidsskr.22.0658, PubMed 36655958

Publications 2022

Christensen EE, Binde C, Leegaard M, Tonby K, Dyrhol-Riise AM, Kvale D, Amundsen EK, Holten AR (2022)
DIAGNOSTIC ACCURACY AND ADDED VALUE OF INFECTION BIOMARKERS IN PATIENTS WITH POSSIBLE SEPSIS IN THE EMERGENCY DEPARTMENT
Shock, 58 (4), 251-259
DOI 10.1097/SHK.0000000000001981, PubMed 36130401

Kristoffersen AH, Henriksson CE, Kittang AO, Amundsen EK (2022)
[Monitoring of unfractionated heparin]
Tidsskr Nor Laegeforen, 142 (5)
DOI 10.4045/tidsskr.21.0912, PubMed 35324124

Lunde HE, Hjelmtvedt AN, Amundsen EK (2022)
The diagnostic accuracy of Sysmex XN for identification of pseudothrombocytopenia using various thresholds for definition of platelet aggregation
Int J Lab Hematol, 44 (5), 854-860
DOI 10.1111/ijlh.13920, PubMed 35751410

Publications 2021

Amundsen EK, Binde C, Christensen EE, Klingenberg O, Kvale D, Holten AR (2021)
Prognostic Value of Nucleated RBCs for Patients With Suspected Sepsis in the Emergency Department: A Single-Center Prospective Cohort Study
Crit Care Explor, 3 (7), e0490
DOI 10.1097/CCE.0000000000000490, PubMed 34291222

Carr E, Bendayan R, Bean D, Stammers M, Wang W, Zhang H, Searle T, Kraljevic Z, Shek A, Phan HTT, Muruet W, Gupta RK, Shinton AJ, Wyatt M, Shi T, Zhang X, Pickles A, Stahl D, Zakeri R, Noursadeghi M, O'Gallagher K, Rogers M, Folarin A, Karwath A, Wickstrøm KE et al. (2021)
Evaluation and improvement of the National Early Warning Score (NEWS2) for COVID-19: a multi-hospital study
BMC Med, 19 (1), 23
DOI 10.1186/s12916-020-01893-3, PubMed 33472631

Ihle-Hansen H, Hagberg G, Sandset EC, Ihle-Hansen H, Amundsen EK, Sandset PM, Myrstad M (2021)
[Anticoagulant reversal in intracerebral haemorrhage]
Tidsskr Nor Laegeforen, 141 (2021-14)
DOI 10.4045/tidsskr.21.0063, PubMed 34641660

Kolberg ES, Wickstrøm K, Tonby K, Dyrhol-Riise AM, Holten AR, Amundsen EK (2021)
Serum ACE as a prognostic biomarker in COVID-19: a case series
APMIS, 129 (4), 237-238
DOI 10.1111/apm.13108, PubMed 33368687

Wickstrøm KE, Vitelli V, Carr E, Holten AR, Bendayan R, Reiner AH, Bean D, Searle T, Shek A, Kraljevic Z, Teo J, Dobson R, Tonby K, Köhn-Luque A, Amundsen EK (2021)
Regional performance variation in external validation of four prediction models for severity of COVID-19 at hospital admission: An observational multi-centre cohort study
PLoS One, 16 (8), e0255748
DOI 10.1371/journal.pone.0255748, PubMed 34432797

Publications 2020

Amundsen EK, Moholt TK, Meyer M, Haug JB, Berild D (2020)
[Antibiotic stewardship with the aid of procalcitonin]
Tidsskr Nor Laegeforen, 140 (11)
DOI 10.4045/tidsskr.20.0056, PubMed 32815338

Publications 2015

Amundsen EK (2015)
[Differential counting of leukocytes]
Tidsskr Nor Laegeforen, 135 (21), 1974
DOI 10.4045/tidsskr.15.1016, PubMed 26577331

Amundsen EK, Urdal P, Henriksson CE (2015)
Poor accuracy of the eosinophil count of hematology instruments limits the use of eosinopenia as a marker of bacterial infection or increased mortality
Int J Lab Hematol, 37 (5), e119-22
DOI 10.1111/ijlh.12343, PubMed 25807967

Amundsen EK, Urdal P, Holthe MR, Henriksson CE (2015)
Aggregation of monocytes and platelets interferes in measurement of monocyte viability with phosphatidylserine expression but not with Mitochondrial membrane potential in whole blood
Cytometry B Clin Cytom, 92 (3), 228-235
DOI 10.1002/cyto.b.21189, PubMed 26184355

Publications 2014

Amundsen EK, Urdal P, Holthe MR, Henriksson CE (2014)
Aggregation of monocytes and platelets interferes in measurement of monocyte viability with phosphatidylserine expression but not with mitochondrial membrane potential in whole blood
Cytometry B Clin Cytom (in press)
DOI 10.1002/cytob.21189, PubMed 25178677

Urdal P, Amundsen EK, Toska K, Klingenberg O (2014)
Automated alarm to detect antigen excess in serum free immunoglobulin light chain kappa and lambda assays
Scand J Clin Lab Invest, 74 (7), 575-81
DOI 10.3109/00365513.2014.915426, PubMed 25007050

Publications 2012

Amundsen EK, Henriksson CE, Holthe MR, Urdal P (2012)
Is the blood basophil count sufficiently precise, accurate, and specific?: three automated hematology instruments and flow cytometry compared
Am J Clin Pathol, 137 (1), 86-92
DOI 10.1309/AJCP19BFTHYTMORO, PubMed 22180481

Amundsen EK, Urdal P, Hagve TA, Holthe MR, Henriksson CE (2012)
Absolute neutrophil counts from automated hematology instruments are accurate and precise even at very low levels
Am J Clin Pathol, 137 (6), 862-9
DOI 10.1309/AJCPOJN03GOXZRZY, PubMed 22586044

Publications 2007

Davidsen T, Amundsen EK, Rødland EA, Tønjum T (2007)
DNA repair profiles of disease-associated isolates of Neisseria meningitidis
FEMS Immunol Med Microbiol, 49 (2), 243-51
DOI 10.1111/j.1574-695X.2006.00195.x, PubMed 17284282