Brad S Karon

Brad S Karon

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Brad S Karon

Brad S Karon

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Implementation of a reformulated Roche® bilirubin Gen.3 reagent did not affect the relationship between BiliChek transcutaneous and Roche total serum bilirubin.

Clin Biochem 2019 Jan 3;63:148-151. Epub 2018 Oct 3.

Department of Laboratory Medicine and Pathology, Mayo Clinic, United States. Electronic address:

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http://dx.doi.org/10.1016/j.clinbiochem.2018.10.001DOI Listing
January 2019

High-Sensitivity Troponin in Patients With Coronary Artery Endothelial Dysfunction.

J Invasive Cardiol 2018 Nov;30(11):406-410

Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA.

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November 2018

Blood gas sample spiking with total parenteral nutrition, lipid emulsion, and concentrated dextrose solutions as a model for predicting sample contamination based on glucose result.

Clin Biochem 2018 May 16;55:93-95. Epub 2018 Mar 16.

Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States. Electronic address:

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http://dx.doi.org/10.1016/j.clinbiochem.2018.03.011DOI Listing
May 2018

In Reply.

Anesthesiology 2018 May;128(5):1045-1046

Mayo Clinic, Rochester, Minnesota (T.B.C.).

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http://dx.doi.org/10.1097/ALN.0000000000002150DOI Listing
May 2018

Comparing analytical outliers and the percent of emergency department patients with results above the 99th percentile upper reference limit for 2 conventional and one high sensitivity troponin assay.

Clin Biochem 2018 Mar 2;53:104-109. Epub 2018 Jan 2.

Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, United States; Department of Cardiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, United States.

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http://dx.doi.org/10.1016/j.clinbiochem.2018.01.001DOI Listing
March 2018

Accuracy of Capillary and Arterial Whole Blood Glucose Measurements Using a Glucose Meter in Patients under General Anesthesia in the Operating Room.

Anesthesiology 2017 09;127(3):466-474

From the Department of Laboratory Medicine and Pathology (B.S.K., L.J.D.), Mayo Clinic School of Health Sciences (B.S.K., C.M.L., L.K.S., A.E.W., M.E.S.-M.), Department of Anesthesiology and Perioperative Medicine (C.M.L., L.K.S., A.E.W., M.E.S.-M., T.B.C.), Division of Biomedical Statistics and Informatics (C.M.W.-W.), and Department of Biomedical Engineering and Physiology (T.B.C.), Mayo Clinic, Rochester, Minnesota.

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http://dx.doi.org/10.1097/ALN.0000000000001708DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561475PMC
September 2017

Advances Afoot in Microbiology.

J Clin Microbiol 2017 07 24;55(7):1984-1988. Epub 2017 May 24.

Division of Clinical Core Laboratory Services, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA.

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http://dx.doi.org/10.1128/JCM.00664-17DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5483899PMC
July 2017

Analytical performance of three whole blood point-of-care lactate devices compared to plasma lactate comparison methods and a flow-injection mass spectrometry method.

Clin Biochem 2017 Mar 9;50(4-5):168-173. Epub 2016 Nov 9.

Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, United States. Electronic address:

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http://dx.doi.org/10.1016/j.clinbiochem.2016.11.004DOI Listing
March 2017

Commentary.

Authors:
Brad S Karon

Clin Chem 2017 Feb;63(2):463

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.

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http://dx.doi.org/10.1373/clinchem.2016.267310DOI Listing
February 2017

Relation of Activated Clotting Times During Percutaneous Coronary Intervention to Outcomes.

Am J Cardiol 2016 Mar 13;117(5):703-8. Epub 2015 Dec 13.

Division of Cardiovascular Disease, Department of Medicine, Mayo Clinic, Rochester, Minnesota; Division of Cardiology, Department of Medicine, Mayo Clinic Health System, La Crosse, Wisconsin. Electronic address:

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http://dx.doi.org/10.1016/j.amjcard.2015.12.003DOI Listing
March 2016

Impact of Glucose Meter Error on Glycemic Variability and Time in Target Range During Glycemic Control After Cardiovascular Surgery.

J Diabetes Sci Technol 2015 Aug 25;10(2):336-42. Epub 2015 Aug 25.

Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA.

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http://journals.sagepub.com/doi/10.1177/1932296815602099
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http://dx.doi.org/10.1177/1932296815602099DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4773953PMC
August 2015

Agreement between whole blood and plasma sodium measurements in profound hyponatremia.

Clin Biochem 2015 May 13;48(7-8):525-8. Epub 2015 Mar 13.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.

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http://dx.doi.org/10.1016/j.clinbiochem.2015.03.001DOI Listing
May 2015

Comparison of two point of care devices for capillary lipid screening in fasting and postprandial adults.

Clin Biochem 2015 Feb 14;48(3):174-6. Epub 2014 Nov 14.

Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1016/j.clinbiochem.2014.11.003DOI Listing
February 2015

Retrospective evaluation of the accuracy of Roche AccuChek Inform and Nova StatStrip glucose meters when used on critically ill patients.

Diabetes Technol Ther 2014 Dec 5;16(12):828-32. Epub 2014 Aug 5.

Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota.

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http://www.liebertpub.com/doi/10.1089/dia.2014.0074
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http://dx.doi.org/10.1089/dia.2014.0074DOI Listing
December 2014

Why is everyone so excited about thromboelastrography (TEG)?

Authors:
Brad S Karon

Clin Chim Acta 2014 Sep 28;436:143-8. Epub 2014 May 28.

Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905. Electronic address:

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http://dx.doi.org/10.1016/j.cca.2014.05.013DOI Listing
September 2014

Glucose Meter Use in the Intensive Care Unit: Much Ado About Something.

Authors:
S Karon Brad

EJIFCC 2014 Sep 4;25(2):178-87. Epub 2014 Sep 4.

Department of Laboratory Medicine and Pathology, Mayo Clinic.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4975293PMC
September 2014

Development and initial validation of a project-based rubric to assess the systems-based practice competency of residents in the clinical chemistry rotation of a pathology residency.

Arch Pathol Lab Med 2014 Jun;138(6):809-13

From the Center for Individualized Medicine (Ms Vitek), Emeritus Faculty (Drs Dale and Homburger), the Division of Biostatistics and Informatics (Ms Bryant), and the Department of Laboratory Medicine and Pathology (Drs Saenger and Karon), Mayo Clinic, Rochester, Minnesota.

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http://dx.doi.org/10.5858/arpa.2013-0046-OADOI Listing
June 2014

Empiric validation of simulation models for estimating glucose meter performance criteria for moderate levels of glycemic control.

Diabetes Technol Ther 2013 Dec 13;15(12):996-1003. Epub 2013 Sep 13.

1 Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota.

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http://dx.doi.org/10.1089/dia.2013.0086DOI Listing
December 2013

Analytical performance of three point of care methods for pleural fluid pH analysis.

Clin Biochem 2013 Aug 30;46(12):1139-1141. Epub 2013 Apr 30.

Mayo Clinic, Department of Laboratory Medicine and Pathology, 200 First Street SW, Rochester, MN 55905, USA. Electronic address:

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https://linkinghub.elsevier.com/retrieve/pii/S00099120130016
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http://dx.doi.org/10.1016/j.clinbiochem.2013.04.021DOI Listing
August 2013

Fresh and citrated whole-blood specimens can produce different thromboelastography results in patients on extracorporeal membrane oxygenation.

Am J Clin Pathol 2013 Aug;140(2):165-9

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1309/AJCPYIQ9JNNSEN4QDOI Listing
August 2013

Temporal sequence of major biochemical events during blood bank storage of packed red blood cells.

Blood Transfus 2012 Oct 28;10(4):453-61. Epub 2012 Mar 28.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55455, USA.

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http://dx.doi.org/10.2450/2012.0099-11DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3496226PMC
October 2012

BD rapid serum tubes reduce false positive plasma troponin T results on the Roche Cobas e411 analyzer.

Clin Biochem 2012 Jul 26;45(10-11):842-4. Epub 2012 Apr 26.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester MN 55905, USA.

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http://dx.doi.org/10.1016/j.clinbiochem.2012.04.014DOI Listing
July 2012

Accuracy of neonatal transcutaneous bilirubin measurement in the outpatient setting.

Clin Pediatr (Phila) 2011 Dec 18;50(12):1144-9. Epub 2011 Oct 18.

Mayo Clinic, Rochester, MN, USA.

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http://dx.doi.org/10.1177/0009922811417292DOI Listing
December 2011

UGT1A1 sequence variants and bilirubin levels in early postnatal life: a quantitative approach.

BMC Med Genet 2011 Apr 22;12:57. Epub 2011 Apr 22.

Department of Pediatric and Adolescent Medicine, Mayo Clinic and Foundation, 200 1stSt SW, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1186/1471-2350-12-57DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3107779PMC
April 2011

BiliChek transcutaneous bilirubin meter overestimates serum bilirubin as measured by the Doumas reference method.

Clin Biochem 2010 Aug 6;43(12):1009-12. Epub 2010 May 6.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1016/j.clinbiochem.2010.04.065DOI Listing
August 2010

Glucose meter performance criteria for tight glycemic control estimated by simulation modeling.

Clin Chem 2010 Jul 28;56(7):1091-7. Epub 2010 May 28.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.

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http://www.clinchem.org/cgi/doi/10.1373/clinchem.2010.145367
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http://dx.doi.org/10.1373/clinchem.2010.145367DOI Listing
July 2010

Legal aspects of laboratory medicine and pathology for residents and fellows: a curriculum for pathology training programs.

Arch Pathol Lab Med 2010 Jul;134(7):1029-32

Legal Department, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1043/2009-0251-OA.1DOI Listing
July 2010

Comparison of three whole blood creatinine methods for estimation of glomerular filtration rate before radiographic contrast administration.

Am J Clin Pathol 2009 Dec;132(6):920-6

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1309/AJCPTE5FEY0VCGOZDOI Listing
December 2009

Accuracy of whole blood glucose measurement when venous catheter blood samples are used on glucose meters.

Diabetes Technol Ther 2009 Dec;11(12):819-25

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55905, USA.

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http://www.liebertpub.com/doi/10.1089/dia.2009.0074
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http://dx.doi.org/10.1089/dia.2009.0074DOI Listing
December 2009

Catecholamine interference in enzymatic creatinine assays.

Clin Chem 2009 Sep 9;55(9):1732-6. Epub 2009 Jul 9.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55905, USA.

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http://www.clinchem.org/cgi/doi/10.1373/clinchem.2009.127373
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http://dx.doi.org/10.1373/clinchem.2009.127373DOI Listing
September 2009

Acute-care testing at the point of care: now and in the future.

Authors:
Brad S Karon

MLO Med Lab Obs 2009 Aug;41(8):22, 24-6

Hospital Clinical Laboratories, POCT, and phlebotomy services, Mayo Clinic, Rochester, MN, USA.

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August 2009

Changes in Band 3 oligomeric state precede cell membrane phospholipid loss during blood bank storage of red blood cells.

Transfusion 2009 Jul 23;49(7):1435-42. Epub 2009 Mar 23.

Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1111/j.1537-2995.2009.02133.xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3649012PMC
July 2009

Comparison and validation of point of care lactate meters as a replacement for fetal pH measurement.

Clin Biochem 2008 Dec 18;41(18):1461-5. Epub 2008 Sep 18.

Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1016/j.clinbiochem.2008.08.088DOI Listing
December 2008

Evaluation of the BiliChek noninvasive bilirubin analyzer for prediction of serum bilirubin and risk of hyperbilirubinemia.

Am J Clin Pathol 2008 Dec;130(6):976-82

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1309/AJCPRX1E3NWCXHMZDOI Listing
December 2008

Comparison of measured and calculated bicarbonate values.

Clin Chem 2008 Sep;54(9):1586-7

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http://dx.doi.org/10.1373/clinchem.2008.107441DOI Listing
September 2008

Accuracy of capillary whole blood international normalized ratio on the CoaguChek S, CoaguChek XS, and i-STAT 1 point-of-care analyzers.

Am J Clin Pathol 2008 Jul;130(1):88-92

Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1309/DEK41W141Y0KRN8ADOI Listing
July 2008

Aspirin responsiveness in healthy volunteers measured with multiple assay platforms.

Clin Chem 2008 Jun 17;54(6):1060-5. Epub 2008 Apr 17.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.

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http://dx.doi.org/10.1373/clinchem.2007.101014DOI Listing
June 2008

Can serum beta-hydroxybutyrate be used to diagnose diabetic ketoacidosis?

Diabetes Care 2008 Apr 9;31(4):643-7. Epub 2008 Jan 9.

Division of Endocrinology, Diabetes, Nutrition, and Metabolism, Mayo Clinic, Rochester, Minnesota 55905, USA.

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http://dx.doi.org/10.2337/dc07-1683DOI Listing
April 2008

Evaluation of the impact of hematocrit and other interference on the accuracy of hospital-based glucose meters.

Diabetes Technol Ther 2008 Apr;10(2):111-20

Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester Minnesota 55905, USA.

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http://www.liebertpub.com/doi/10.1089/dia.2007.0257
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http://dx.doi.org/10.1089/dia.2007.0257DOI Listing
April 2008

Evaluation of hemoglobin interference in capillary heel-stick samples collected for determination of neonatal bilirubin.

Clin Biochem 2007 Nov 11;40(16-17):1311-6. Epub 2007 Aug 11.

Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

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http://linkinghub.elsevier.com/retrieve/pii/S000991200700305
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http://dx.doi.org/10.1016/j.clinbiochem.2007.08.003DOI Listing
November 2007

Comparison of lactate values between point-of-care and central laboratory analyzers.

Am J Clin Pathol 2007 Jul;128(1):168-71

Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.

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http://dx.doi.org/10.1309/HBQEFDPH34MKK5GPDOI Listing
July 2007

Leadership and management training for residents and fellows: a curriculum for future medical directors.

Arch Pathol Lab Med 2007 Apr;131(4):610-4

Division of Anatomic Pathology, Mayo Clinic, Rochester, Minn 55905, USA.

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http://dx.doi.org/10.1043/1543-2165(2007)131[610:LAMTFR]2.0.CO;2DOI Listing
April 2007

Comparison of the TDx-FLM II and lecithin to sphingomyelin ratio assays in predicting fetal lung maturity.

Am J Obstet Gynecol 2005 Sep;193(3 Pt 1):778-82

Department of Pathology, Sunrise Hospital and Medical Center, Las Vegas, NV, USA.

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http://linkinghub.elsevier.com/retrieve/pii/S000293780500167
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http://dx.doi.org/10.1016/j.ajog.2005.01.045DOI Listing
September 2005