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Profile

David Koch PhD

  • Department of Pathology and Laboratory Medicine
    Professor Emeritus
  • (404) 616-5489
  • ddkoch@emory.edu
Head shot of David Koch

Academic Appointment

  • Associate Professor, Department of Pathology and Laboratory Medicine, Emory University School of Medicine

Education

Degrees

  • BS from Purdue University
  • PhD from Purdue University

Research

Focus

  • Evaluation of clinical laboratory methods pertaining to clinical chemistry. Method evaluation approaches, experiments, and statistics. Proper interpretation of experimental data leading to objective, logical decision-making. Method development and evaluation of clinical laboratory technology for new applications and for diagnostic reagent and instrument companies. Evaluation and develop development of novel biomarkers for diagnostic and monitoring of disease.

Publications

  • Large-Scale Scientific Study Led by a Professional Organization during the COVID-19 Pandemic: Operations, Best Practices, and Lessons Learned.
    J Appl Lab Med Volume: 9 Page(s): 371 - 385
    03/01/2024 Authors: Ondracek CR; Melanson SEF; Doan L; Schulz KM; Kleinman S; Zhao Z; Kumanovics A; Wu AHB; Wiencek J; Meng QH
  • Performance of Three Anti-SARS-CoV-2 Anti-S and One Anti-N Immunoassays for the Monitoring of Immune Status and Vaccine Response.
    Viruses Volume: 16
    02/14/2024 Authors: Zhang YV; Kumanovics A; Wiencek J; Melanson SEF; Love T; Wu AHB; Zhao Z; Meng QH; Koch DD; Apple FS
  • T Cell Responses Correlate with Self-Reported Disease Severity and Neutralizing Antibody Responses Predict Protection against SARS-CoV-2 Breakthrough Infection.
    Viruses Volume: 15
    03/09/2023 Authors: Zhao Z; Kumanovics A; Love T; Melanson SEF; Meng QH; Wu AHB; Wiencek J; Apple FS; Ondracek CR; Koch DD
  • Elevated methemoglobin levels in patients treated with hydroxocobalamin: a case series and in-vitro analysis.
    Clin Toxicol (Phila) Volume: 60 Page(s): 1012 - 1018
    09/01/2022 Authors: Kiernan EA; Carpenter JE; Dunkley CA; Moran TP; Rothstein LS; Silver E; Salehi M; Koch DD; Morgan BW; Murray BP
  • Tolerance for three commonly administered COVID-19 vaccines by healthcare professionals.
    Front Public Health Volume: 10 Page(s): 975781
    01/01/2022 Authors: Melanson SEF; Zhao Z; Kumanovics A; Love T; Meng QH; Wu AHB; Apple F; Ondracek CR; Schulz KM; Wiencek JR
  • A Review of Acute Pancreatitis.
    JAMA Volume: 325 Page(s): 2402
    06/15/2021 Authors: Alter D; Koch DD
  • Elevated Methemoglobin Levels in a Patient Treated with Hydroxocobalamin After Suspected Cyanide Exposure.
    J Emerg Med Volume: 59 Page(s): e157 - e162
    11/01/2020 Authors: Kiernan E; Carpenter JE; Dunkley CA; Koch D; Morgan BW; Steck AR; Murray BP
  • IFCC Interim Guidelines on Serological Testing of Antibodies against SARS-CoV-2.
    Clin Chem Lab Med Volume: 58 Page(s): 2001 - 2008
    10/07/2020 Authors: Bohn MK; Loh TP; Wang C-B; Mueller R; Koch D; Sethi S; Rawlinson WD; Clementi M; Erasmus R; Leportier M
  • IFCC Interim Guidelines on Molecular Testing of SARS-CoV-2 Infection.
    Clin Chem Lab Med Volume: 58 Page(s): 1993 - 2000
    10/07/2020 Authors: Bohn MK; Mancini N; Loh TP; Wang C-B; Grimmler M; Gramegna M; Yuen K-Y; Mueller R; Koch D; Sethi S
  • IFCC Interim Guidelines on Biochemical/Hematological Monitoring of COVID-19 Patients.
    Clin Chem Lab Med Volume: 58 Page(s): 2009 - 2016
    10/07/2020 Authors: Thompson S; Bohn MK; Mancini N; Loh TP; Wang C-B; Grimmler M; Yuen K-Y; Mueller R; Koch D; Sethi S
  • Laboratory practices to mitigate biohazard risks during the COVID-19 outbreak: an IFCC global survey.
    Clin Chem Lab Med Volume: 58 Page(s): 1433 - 1440
    08/27/2020 Authors: Loh TP; Horvath AR; Wang C-B; Koch D; Lippi G; Mancini N; Ferrari M; Hawkins R; Sethi S; Adeli K
  • Operational considerations and challenges of biochemistry laboratories during the COVID-19 outbreak: an IFCC global survey.
    Clin Chem Lab Med Volume: 58 Page(s): 1441 - 1449
    08/27/2020 Authors: Loh TP; Horvath AR; Wang C-B; Koch D; Adeli K; Mancini N; Ferrari M; Hawkins R; Sethi S; Lippi G
  • Molecular, serological, and biochemical diagnosis and monitoring of COVID-19: IFCC taskforce evaluation of the latest evidence.
    Clin Chem Lab Med Volume: 58 Page(s): 1037 - 1052
    06/25/2020 Authors: Bohn MK; Lippi G; Horvath A; Sethi S; Koch D; Ferrari M; Wang C-B; Mancini N; Steele S; Adeli K
  • Biosafety measures for preventing infection from COVID-19 in clinical laboratories: IFCC Taskforce Recommendations.
    Clin Chem Lab Med Volume: 58 Page(s): 1053 - 1062
    06/25/2020 Authors: Lippi G; Adeli K; Ferrari M; Horvath AR; Koch D; Sethi S; Wang C-B
  • Does Lidocaine Cause False Positive Results on Cocaine Urine Drug Screen?
    J Med Toxicol Volume: 15 Page(s): 255 - 261
    10/01/2019 Authors: Kim E; Murray BP; Salehi M; Moran TP; Carpenter JE; Koch DD; Ritchie JC; Schindler JM; Morgan BW
  • Is a 500-Cell Count Necessary for Bone Marrow Differentials?: A Proposed Analytical Method for Validating a Lower Cutoff.
    Am J Clin Pathol Volume: 150 Page(s): 84 - 91
    05/31/2018 Authors: Abdulrahman AA; Patel KH; Yang T; Koch DD; Sivers SM; Smith GH; Jaye DL
  • Safety, tolerability, and pharmacokinetics of l-ornithine phenylacetate in patients with acute liver injury/failure and hyperammonemia.
    Volume: 67 Page(s): 1003 - 1013
    03/01/2018 Authors: Stravitz RT; Gottfried M; Durkalski V; Fontana RJ; Hanje AJ; Koch D; Hameed B; Ganger D; Subramanian RM; Bukofzer S
  • The use of error and uncertainty methods in the medical laboratory.
    Clin Chem Lab Med Volume: 56 Page(s): 209 - 219
    01/26/2018 Authors: Oosterhuis WP; Bayat H; Armbruster D; Coskun A; Freeman KP; Kallner A; Koch D; Mackenzie F; Migliarino G; Orth M
  • Creation of a Universal Sample Bank for Determining the 99th Percentile for Cardiac Troponin Assays.
    J Appl Lab Med Volume: 1 Page(s): 711 - 719
    05/01/2017 Authors: Wu AHB; Apple F; Love SA; Koch D; Myers GL; Christenson RH; AACC's Biomarkers of Acute Cardiovascular Disease Division
  • Is a 500 Cell Bone Marrow Differential Count Necessary?
    Am J Clin Pathol Volume: 147 Page(s): S27
    03/01/2017 Authors: Patel K; Smith G; Koch D; Sivers S; Jaye D
  • Albumin adsorption onto surfaces of urine collection and analysis containers.
    Clin Chim Acta Volume: 431 Page(s): 40 - 45
    04/20/2014 Authors: Robinson MK; Caudill SP; Koch DD; Ritchie J; Hortin G; Eckfeldt JH; Sandberg S; Williams D; Myers G; Miller WG
  • SPONTANEOUS BACTERIAL PERITONITIS AND BACTEREMIA PREDICT MORTALITY IN CIRRHOSIS DESPITE PROPHYLACTIC MEASURES: A PROSPECTIVE MULTI-CENTER STUDY FROM NACSELD
    Volume: 60 Page(s): S237 - S237
    04/01/2014 Authors: Biggins SW; O'Leary JG; Reddy KR; Wong F; Kamath PS; Patton HM; Fallon MB; Garcia-Tsao G; Subramanian RM; Thuluvath P
  • Unintended reporting of misleading Hb A(1c) values when using assays incapable of detecting hemoglobin variants.
    Arch Pathol Lab Med Volume: 137 Page(s): 1788 - 1791
    12/01/2013 Authors: Rhea JM; Koch D; Ritchie J; Singh HV; Young AN; Burgess T; Molinaro RJ
  • Evaluation of Alternate Hemoglobin A1c Assays for Use in a Population with a High Prevalence of Hemoglobin Variants
    Volume: 140 Page(s): 435 - 435
    09/01/2013 Authors: Stevens KS; Koch D; Young A
  • Teaching laboratory medicine to medical students: implementation and evaluation.
    Arch Pathol Lab Med Volume: 136 Page(s): 1423 - 1429
    11/01/2012 Authors: Molinaro RJ; Winkler AM; Kraft CS; Fantz CR; Stowell SR; Ritchie JC; Koch DD; Heron S; Liebzeit J; Santen SA
  • Evaluation of Two Years of a Medical Student Clinical Laboratory Experience
    Volume: 138 Page(s): A376 - A376
    11/01/2012 Authors: Molinaro RJ; Winkler A; Bunting S; Koch D; Ritchie J; Edgar M; Kinsella M; Rogers B; Fantz C; Guarner J
  • Determination of Cocaine Metabolites and the Adulterant Levamisole in Urine Using UPLC-MS/MS
    Volume: 136 Page(s): 463 - 463
    09/01/2011 Authors: Abou-Diwan C; Koch DD; Ritchie JC
  • Glucose-independent, black-white differences in hemoglobin A1c levels: a cross-sectional analysis of 2 studies.
    Ann Intern Med Volume: 152 Page(s): 770 - 777
    06/15/2010 Authors: Ziemer DC; Kolm P; Weintraub WS; Vaccarino V; Rhee MK; Twombly JG; Narayan KMV; Koch DD; Phillips LS
  • Acute chloroform ingestion successfully treated with intravenously administered N-acetylcysteine.
    J Med Toxicol Volume: 6 Page(s): 143 - 146
    06/01/2010 Authors: Dell'Aglio DM; Sutter ME; Schwartz MD; Koch DD; Algren DA; Morgan BW
  • Glucose challenge test screening for prediabetes and undiagnosed diabetes.
    Diabetologia Volume: 52 Page(s): 1798 - 1807
    09/01/2009 Authors: Phillips LS; Ziemer DC; Kolm P; Weintraub WS; Vaccarino V; Rhee MK; Chatterjee R; Narayan KMV; Koch DD
  • Comparison of a Point-of-Care Whole Blood Beta-Hydroxybutyrate System with a Clinical Laboratory Reference Method
    Volume: 55 Page(s): A104 - A104
    06/01/2009 Authors: Chin AC; Koch DD
  • The "metabolic syndrome" is less useful than random plasma glucose to screen for glucose intolerance.
    Prim Care Diabetes Volume: 2 Page(s): 147 - 153
    09/01/2008 Authors: El Bassuoni EA; Ziemer DC; Kolm P; Rhee MK; Vaccarino V; Tsui CW; Kaufman JM; Osinski GE; Koch DD; Narayan KMV
  • Evaluation of new Beckman Coulter quality control software, including the use of patient moving average data for common clinical chemistry analytes
    Volume: 54 Page(s): A51 - A51
    06/01/2008 Authors: Snyder ML; Atha B; Hays NE; Koch DD
  • Age, BMI, and race are less important than random plasma glucose in identifying risk of glucose intolerance: the Screening for Impaired Glucose Tolerance Study (SIGT 5).
    Volume: 31 Page(s): 884 - 886
    05/01/2008 Authors: Ziemer DC; Kolm P; Weintraub WS; Vaccarino V; Rhee MK; Caudle JM; Irving JM; Koch DD; Narayan KMV; Phillips LS
  • Random plasma glucose in serendipitous screening for glucose intolerance: screening for impaired glucose tolerance study 2.
    Volume: 23 Page(s): 528 - 535
    05/01/2008 Authors: Ziemer DC; Kolm P; Foster JK; Weintraub WS; Vaccarino V; Rhee MK; Varughese RM; Tsui CW; Koch DD; Twombly JG
  • Survival following acute chloroform ingestion with subsequent hepatotoxicity treated with N-acetyl-cysteine
    CLINICAL TOXICOLOGY Volume: 45 Page(s): 624 - 625
    09/01/2007 Authors: Dell'Aglio DM; Schwartz MD; Koch DD; Sutter ME; Morgan BW
  • Three-way method comparison and validation study of a newly available intact parathyroid hormone assay
    Volume: 53 Page(s): A198 - A198
    06/01/2007 Authors: Molinaro RJ; Atha B; Ritchie JC; Koch DD
  • Analytical interference from Lymphazurin (TM) (isosulfan blue) Lymphatic dye on common clinical chemistry analytes
    Volume: 52 Page(s): A108 - A109
    06/01/2006 Authors: Sanii LS; Ritchie JC; Koch DD
  • Laboratory process improvement through implementation of Beckman-Coulter sample handling automation technology
    Volume: 52 Page(s): A6 - A6
    06/01/2006 Authors: Atha B; Crawford JP; Hutson LC; Cotterman R; Vroon DH; Koch DD
  • Lactate, beta-hydroxybutyrate, and acetoacetate effect on serum osmolal gaps
    CLINICAL TOXICOLOGY Volume: 44 Page(s): 682 - 683
    01/01/2006 Authors: Sanii LS; Algren DA; Koch DD; Geller RJ
  • The running median of cardiac troponin results can be used to indicate analytical and preanalytical problems.
    CLINICAL CHEMISTRY Volume: 47 Page(s): A209 - A209
    06/01/2001 Authors: Cembrowski GS; Koch DD; Winchester T; Quam EF
  • Comparison of novel urine chemistry protein reagents in a hospital setting.
    Volume: 47 Page(s): A37 - A37
    06/01/2001 Authors: Koch DD; Stuessi P; Sun Y; Painter PC; Cox M; Jubran Y; Wilson D
  • Wide variation in serum anion gap measurements by chemistry analyzers.
    Am J Clin Pathol Volume: 110 Page(s): 735 - 742
    12/01/1998 Authors: Paulson WD; Roberts WL; Lurie AA; Koch DD; Butch AW; Aguanno JJ
  • Practical experience with and application of serum indices on several BM/Hitachi instruments.
    CLINICAL CHEMISTRY Volume: 44 Page(s): A138 - A139
    06/01/1998 Authors: Iwanski AL; Quam EF; Koch DD
  • The clinical utility of the serum anion gap is compromised by electrolyte measurement biases between analyzers.
    CLINICAL CHEMISTRY Volume: 44 Page(s): A114 - A114
    06/01/1998 Authors: Koch DD; Paulson WD; Roberts WL; Lurie AA; Butch AW; Aguanno JJ
  • Homocysteine: a new risk factor for atherosclerosis.
    Am Fam Physician Volume: 56 Page(s): 1607 - 1616
    10/15/1997 Authors: Fallest-Strobl PC; Koch DD; Stein JH; McBride PE
  • Epidemiological evidence for the disruption of ionized calcium homeostasis in the elderly.
    J Clin Epidemiol Volume: 50 Page(s): 845 - 849
    07/01/1997 Authors: Watson JB; Lee K; Klein R; Klein BE; Koch DD
  • A calcium discrepancy attributable to magnetic resonance contrast medium.
    CLINICAL CHEMISTRY Volume: 43 Page(s): 148 - 148
    06/01/1997 Authors: Curtis BA; Haessig LK; FallestStrobl P; Koch DD
  • How to evaluate and implement new technologies in an era of managed care and cost containment.
    Clin Chem Volume: 42 Page(s): 797 - 802
    05/01/1996 Authors: Koch DD
  • DEVELOPMENT OF AN AUTOMATED, STAT PANCREATIC-AMYLASE ASSAY UTILIZING THE OPEN-CHANNEL CAPABILITY OF THE DIMENSION AR
    CLINICAL CHEMISTRY Volume: 41 Page(s): S238 - S238
    06/01/1995 Authors: WATSON JB; BRUNNER DJ; STROBL FJ; QUAM EF; KOCH DD
  • PERFORMANCE OF A KINETIC BICARBONATE METHOD ON BM/HITACHI SYSTEMS
    Volume: 41 Page(s): S189 - S189
    06/01/1995 Authors: FOSTERSWANSON A; GNEZDA M; PATRICK J; WALKER S; LEVY S; RIAZ M; KOCH D; DOWD D; PEARSON R; WATTS D
  • Analytical performance characteristics of the T4 method in the Abbott AxSYM immunoassay analyzer.
    Clin Lab Sci Volume: 8 Page(s): 327 - 330
    01/01/1995 Authors: Koch DD; Wians FH; Davis D; Burton D
  • Comparison of plastic vs. glass evacuated serum-separator (SST) blood-drawing tubes for common clinical chemistry determinations.
    Clin Chem Volume: 38 Page(s): 1474 - 1478
    08/01/1992 Authors: Hill BM; Laessig RH; Koch DD; Hassemer DJ
  • Effect of atrial natriuretic hormone on metoclopramide-induced stimulation of aldosterone.
    J Lab Clin Med Volume: 120 Page(s): 297 - 304
    08/01/1992 Authors: Shenker Y; Meranda D; Clinkingbeard C; Lawrence D; Koch D
  • "Half-life" is erroneously used to describe the disappearance of erythrocytes and hemoglobin from the circulation.
    Clin Chem Volume: 38 Page(s): 1389 - 1390
    07/01/1992 Authors: Koch DD; Miller RC
  • Predicting effects of quality-control practices on the cost-effective operation of a stable, multitest analytical system.
    Clin Chem Volume: 36 Page(s): 1760 - 1764
    10/01/1990 Authors: Westgard JO; Oryall JJ; Koch DD
  • EVALUATION OF ATLANTIC ANTIBODIES PREALBUMIN KIT METHOD ON THE COBAS FARA-II USING TURBIDIMETRIC AND NEPHELOMETRIC MEASUREMENT MODES
    CLINICAL CHEMISTRY Volume: 36 Page(s): 969 - 969
    06/01/1990 Authors: ROSS SJ; KOCH DD; FELDBRUEGGE DH
  • Selection of medically useful quality-control procedures for individual tests done in a multitest analytical system.
    Clin Chem Volume: 36 Page(s): 230 - 233
    02/01/1990 Authors: Koch DD; Oryall JJ; Quam EF; Feldbruegge DH; Dowd DE; Barry PL; Westgard JO
  • Therapy for hypercholesterolemia; standardization of cholesterol measurements.
    JAMA Volume: 263 Page(s): 375 - 376
    01/19/1990
  • INDIVIDUAL HOME GLUCOSE METERS CAN BE EVALUATED BY ROUTINE CLINICAL LABORATORY METHODS
    CLINICAL CHEMISTRY Volume: 35 Page(s): 1142 - 1142
    06/01/1989 Authors: PAULEY SD; MILLER RC; MAIER KS; ROSS SJ; KOCH DD
  • ACCURATE CHOLESTEROL RESULTS BY MODIFICATION OF ROCHE ENZYMATIC METHOD PARAMETERS
    CLINICAL CHEMISTRY Volume: 35 Page(s): 1068 - 1068
    06/01/1989 Authors: TSE M; FELDBRUEGGE D; WIEBE D; KOCH DD
  • DEVELOPMENT AND EVALUATION OF A DEVICE FOR MEASUREMENT OF BODY-FLUIDS
    CLINICAL CHEMISTRY Volume: 35 Page(s): 1129 - 1129
    06/01/1989 Authors: BAGNESKI K; KOCH DD; HAESSIG LK
  • EVALUATION OF THE ASSAY OF MISCELLANEOUS BODY-FLUIDS BY THE KODAK EKTACHEM-700
    CLINICAL CHEMISTRY Volume: 35 Page(s): 1100 - 1100
    06/01/1989 Authors: LARSEN S; FRANK A; DAHLKE L; KOCH DD
  • Testing cholesterol accuracy. Performance of several common laboratory instruments.
    JAMA Volume: 260 Page(s): 2552 - 2557
    11/04/1988 Authors: Koch DD; Hassemer DJ; Wiebe DA; Laessig RH
  • 4 COMMERCIALLY-AVAILABLE CHOLESTEROL METHODS MEET 1992 NCEP GUIDELINES
    CLINICAL CHEMISTRY Volume: 34 Page(s): 1231 - 1231
    06/01/1988 Authors: HASSEMER DJ; KOCH DD; WIEBE DA
  • EFFICIENT QC PROCEDURES BASED ON MEDICAL USEFULNESS REQUIREMENTS FOR THE HITACHI-737 ANALYZER
    CLINICAL CHEMISTRY Volume: 34 Page(s): 1246 - 1246
    06/01/1988 Authors: ORYALL JJ; KOCH DD; QUAM EF; FELDBRUEGGE DH; DOWD DE; BARRY PL; WESTGARD JO
  • USE OF BILIRUBIN OXIDASE AS A MEANS OF OVERCOMING BILIRUBIN INTERFERENCE WITH THE HITACHI-737 CHOLESTEROL METHOD
    CLINICAL CHEMISTRY Volume: 34 Page(s): 1185 - 1185
    06/01/1988 Authors: FELDBRUEGGE DH; KOCH DD; CALKINS DM
  • FRUCTOSAMINE ASSAY - CONFUSION AND CLARITY
    CLINICAL CHEMISTRY Volume: 34 Page(s): 1277 - 1277
    06/01/1988 Authors: HEGSTRAND LR; MILLER RC; KOCH DD
  • MONITORING STAT CHEMISTRY SPECIMENS THROUGH A COMPUTERIZED LOGGING SYSTEM
    CLINICAL CHEMISTRY Volume: 34 Page(s): 1245 - 1245
    06/01/1988 Authors: KLEIN PM; SMULKA GJ; WIEBE DA; KOCH DD; HAESSIG LK; WAGNER SK; DOWD DE; EGGERT AA
  • Laboratory evaluation of new reusable blood glucose sensor.
    Diabetes Care Volume: 11 Page(s): 801 - 807
    01/01/1988 Authors: Updike SJ; Shults MC; Capelli CC; von Heimburg D; Rhodes RK; Joseph-Tipton N; Anderson B; Koch DD
  • Optimized kinetic method for automated determination of beta-hydroxybutyrate.
    Clin Chem Volume: 33 Page(s): 1761 - 1766
    10/01/1987 Authors: Koch DD; Feldbruegge DH
  • Concepts in the validation of neurochemical methods: the proper generation and use of statistics.
    Life Sci Volume: 41 Page(s): 853 - 856
    08/17/1987 Authors: Koch DD
  • EVALUATION OF A NEW PLASMA-CATECHOLAMINE CONTROL MATERIAL USING 2 LIQUID-CHROMATOGRAPHIC APPROACHES
    CLINICAL CHEMISTRY Volume: 33 Page(s): 886 - 887
    06/01/1987 Authors: KOCH DD; POLZIN GL
  • INTERFERENCE FROM IMMUNOGLOBULINS IN THE HITACHI-737 END-POINT UREASE METHOD FOR BLOOD UREA NITROGEN (BUN)
    CLINICAL CHEMISTRY Volume: 33 Page(s): 1010 - 1010
    06/01/1987 Authors: REICH S; WIEBE D; KOCH D
  • DEVELOPMENT OF A RATE BUN METHOD FOR USE ON THE HITACHI-737
    CLINICAL CHEMISTRY Volume: 33 Page(s): 1010 - 1010
    06/01/1987 Authors: DOWD D; KOCH D; WIEBE D; FELDBRUEGGE D
  • PERFORMANCE TESTING OF THE DUPONT DIMENSION
    CLINICAL CHEMISTRY Volume: 33 Page(s): 944 - 944
    06/01/1987 Authors: KOCH D; MILLER R; KOENIG L; KLEIN P
  • EVALUATION OF THE DUPONT ANALYST AND NA/K ANALYZERS FOR PHYSICIAN OFFICE TESTING
    CLINICAL CHEMISTRY Volume: 33 Page(s): 936 - 936
    06/01/1987 Authors: KOCH M; BEDNAR LK; KOCH DD
  • Effect of sample preparation and liquid chromatography column choice on selectivity and precision of plasma catecholamine determination.
    J Chromatogr Volume: 386 Page(s): 19 - 24
    01/16/1987 Authors: Koch DD; Polzin GL
  • PANCREAS TRANSPLANT REJECTION EPISODES MONITORED BY URINE AMYLASE MEASUREMENT
    CLINICAL CHEMISTRY Volume: 32 Page(s): 1139 - 1139
    06/01/1986 Authors: WIEBE DA; KOCH DD; FIELDS BL; SOLLINGER H
  • CLINICAL LABORATORY EVALUATION OF THE EKTACHEM DT60 PRIOR TO PLACEMENT IN A COMMUNITY CLINIC
    CLINICAL CHEMISTRY Volume: 32 Page(s): 1100 - 1100
    06/01/1986 Authors: KOCH DD; BEDNAR LK; QUAM EF; KOCH MJ
  • COMPLETE EVALUATION OF THE HITACHI-737, WITH MODIFICATION OF THE AST METHOD TO ALLOW PREINCUBATION WITH PYRIDOXAL 5'-PHOSPHATE (P5P)
    CLINICAL CHEMISTRY Volume: 32 Page(s): 1103 - 1103
    06/01/1986 Authors: FELDBRUEGGE D; LIDDICOAT L; DOWD D; KOCH DD
  • PLACEMENT OF A WHOLE-BLOOD ELECTROLYTE ANALYZER INTO USE FOR CRITICAL CARE
    CLINICAL CHEMISTRY Volume: 32 Page(s): 1122 - 1122
    06/01/1986 Authors: KOCH DD; ZANK LH; KOCH MJ
  • An evaluation of the Du Pont aca IV: does it meet medical needs?
    Clin Chem Volume: 31 Page(s): 281 - 286
    02/01/1985 Authors: Lott JA; Abbott LB; Koch DD
  • A DETERMINATION OF SERUM BETA-HYDROXYBUTYRATE USING THE TECHNICON RA-1000 SUITABLE FOR STAT USE
    CLINICAL CHEMISTRY Volume: 31 Page(s): 969 - 969
    01/01/1985 Authors: FELDBRUEGGE D; KOCH DD
  • EVALUATION OF THE AMES SERALYZER SOLID-PHASE REFLECTANCE POTASSIUM METHOD
    CLINICAL CHEMISTRY Volume: 31 Page(s): 966 - 967
    01/01/1985 Authors: KOCH DD; CYPERT MM; WIEBE DA
  • Determination of urinary 3-methoxy-4-hydroxyphenylglycol by liquid chromatography with electrochemical detection.
    J Chromatogr Volume: 317 Page(s): 327 - 331
    12/28/1984 Authors: Koch DD; Polzin G
  • BLOOD-GAS TEMPERATURE CORRECTIONS
    JOURNAL OF MEDICAL TECHNOLOGY Volume: 1 Page(s): 532 - 533
    01/01/1984 Authors: KOCH M; HAESSIG L; KOCH D
  • AN ACCURATE AND PRECISE HPLC DETERMINATION OF URINARY MHPG CONDUCIVE TO CLINICAL LABORATORIES
    CLINICAL CHEMISTRY Volume: 30 Page(s): 1046 - 1046
    01/01/1984 Authors: KOCH DD; POLZIN G
  • EVALUATION OF ENZYME-INHIBITION ASSAYS FOR SERUM THYROXINE AND THYRONINE UPTAKE AS APPLIED TO THE DU PONT ACAR
    CLINICAL CHEMISTRY Volume: 30 Page(s): 1037 - 1037
    01/01/1984 Authors: KOCH DD; KLEIN P; KOENIG L; MIJANOVICH J
  • DISCREPANT RESULTS FOR SERUM THEOPHYLLINE BY THE NEW DUPONT ACAR METHOD, SIMILAR TO AND DIFFERENT FROM DISCREPANCIES SEEN BY COMMON IMMUNOASSAY METHODS
    CLINICAL CHEMISTRY Volume: 30 Page(s): 1016 - 1016
    01/01/1984 Authors: KOCH DD; MILLER RC
  • Analytical absorbance errors in a patient receiving intravenous iron dextran.
    Clin Chem Volume: 29 Page(s): 1865 - 1866
    10/01/1983 Authors: Keen ME; Garber CC; Koch DD
  • Errors in determination of potassium in physiological fluids with valinomycin electrodes.
    Anal Chem Volume: 55 Page(s): 1807 - 1809
    09/01/1983 Authors: Koch DD; Ladenson JH
  • Evaluation of a direct potentiometric method for sodium and potassium used in the Du Pont aca.
    Clin Chem Volume: 29 Page(s): 1090 - 1092
    06/01/1983 Authors: Koch DD; Parrish D; Ladenson JH
  • USE OF INTRALIPID-R PARENTERAL-NUTRITION SOLUTION CAUSES MAJOR INTERFERENCES WITH SEVERAL COMMON CHEMISTRY TESTS
    CLINICAL CHEMISTRY Volume: 29 Page(s): 1248 - 1248
    01/01/1983 Authors: KOCH DD; BURMEISTER B; GARBER CC
  • PRECISION OF A P5P SUPPLEMENTED AST ASSAY ON SMAC USING NCCLS EP5-P PROTOCOL
    CLINICAL CHEMISTRY Volume: 29 Page(s): 1169 - 1169
    01/01/1983 Authors: GARBER CC; FELDBRUEGGE DH; QUAM EW; BARRY PL; KOCH DD
  • CONCEPTS AND PRACTICES IN THE EVALUATION OF LABORATORY METHODS
    CLINICAL CHEMISTRY Volume: 29 Page(s): 1297 - 1297
    01/01/1983 Authors: GARBER CC; CAREY RN; KOCH DD
  • ALKALINE-PHOSPHATASE - STUDIES TO CORRELATE THE TECHNICON SMAC AND DUPONT ACA
    CLINICAL CHEMISTRY Volume: 29 Page(s): 1183 - 1183
    01/01/1983 Authors: KOCH DD; FELDBRUEGGE D; GUTSCHENRITTER J; GARBER CC
  • Sodium measurements in multiple myeloma: two techniques compared.
    Clin Chem Volume: 28 Page(s): 2383 - 2386
    12/01/1982 Authors: Ladenson JH; Apple FS; Aguanno JJ; Koch DD
  • Relationship between direct-potentiometric and flame-photometric measurement of sodium in blood.
    Clin Chem Volume: 28 Page(s): 1931 - 1935
    09/01/1982 Authors: Apple FS; Koch DD; Graves S; Ladenson JH
  • Biochemical features of urinothorax.
    Arch Intern Med Volume: 142 Page(s): 1509 - 1511
    08/01/1982 Authors: Stark DD; Shanes JG; Baron RL; Koch DD
  • URINARY SODIUM MEASUREMENT BY DIRECT POTENTIOMETRY
    CLINICAL CHEMISTRY Volume: 28 Page(s): 1631 - 1632
    01/01/1982 Authors: GRAVES SW; KOCH DD; LADENSON JH
  • Misleading hyponatremia due to hyperlipemia: a method-dependent error.
    Ann Intern Med Volume: 95 Page(s): 707 - 708
    12/01/1981 Authors: Ladenson JH; Apple FS; Koch DD
  • Intrathoracic extension of retroperitoneal urine collections.
    AJR Am J Roentgenol Volume: 137 Page(s): 37 - 41
    07/01/1981 Authors: Baron RL; Stark DD; McClennan BL; Shanes JG; Davis GL; Koch DD
  • PSEUDOHYPONATREMIA IN MULTIPLE-MYELOMA - A METHOD DEPENDENT ARTIFACT
    CLINICAL CHEMISTRY Volume: 27 Page(s): 1094 - 1094
    01/01/1981 Authors: LADENSON JH; KOCH D
  • RELATIONSHIP BETWEEN FLAME PHOTOMETRIC AND DIRECT POTENTIOMETRIC MEASUREMENT OF SODIUM - THE EFFECT OF WATER-CONTENT AND THE NATURE OF THE DISCREPANCY
    CLINICAL CHEMISTRY Volume: 27 Page(s): 1094 - 1094
    01/01/1981 Authors: LADENSON JH; KOCH D; APPLE FS
  • APPARENT POTASSIUM BINDING SUBSTANCE OF HIGH-CAPACITY IN HUMAN-URINE
    CLINICAL CHEMISTRY Volume: 27 Page(s): 1094 - 1094
    01/01/1981 Authors: KOCH DD; LADENSON JH
  • EVALUATION OF THE DU PONT ACA ION-SELECTIVE ELECTRODE ACCESSORY (ISE) FOR PERFORMING DIRECT POTENTIOMETRIC ANALYSIS OF SODIUM AND POTASSIUM
    CLINICAL CHEMISTRY Volume: 27 Page(s): 1110 - 1110
    01/01/1981 Authors: KOCH DD; PARRISH D; LADENSON JH
  • Current concepts: I. Liquid chromatography with pre-column sample enrichment and electrochemical detection. Regional determination of serotonin and 5-hydroxyindoleacetic acid in brain tissue.
    Life Sci Volume: 26 Page(s): 1099 - 1107
    04/07/1980 Authors: Koch DD; Kissinger PT
  • Determination of serotonin in serum and plasma by liquid chromatography with precolumn sample enrichment and electrochemical detection.
    Anal Chem Volume: 52 Page(s): 27 - 29
    01/01/1980 Authors: Koch DD; Kissinger PT
  • Determination of tryptophan and several of its metabolites in physiological samples by reversed-phase liquid chromatography with electrochemical detection.
    J Chromatogr Volume: 164 Page(s): 444 - 455
    12/01/1979 Authors: Koch DD; Kissinger PT
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