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Author Details

Robert L Fitzgerald
university of california san diego Health, Center for Advanced Laboratory Medicine
1988
114
31
PMIDPaper TitleJournal TitlePublished Year
36937812Comparison of two highly sensitive benzodiazepine immunoassay lab developed tests for urine drug testing in clinical specimens.J Mass Spectrom Adv Clin Lab2023
37531115Evaluation of Field Sobriety Tests for Identifying Drivers Under the Influence of Cannabis: A Randomized Clinical Trial.JAMA Psychiatry2023
37025609Evaluating the performance of the Roche FEN2 fentanyl immunoassay and its clinical implementation: The role of LDT-based mass spectrometry testing.J Mass Spectrom Adv Clin Lab2023
37199428Variable Delta-9-Tetrahydrocannabinol Pharmacokinetics and Pharmacodynamics After Cannabis Smoking in Regular Users.Ther Drug Monit2023
37228223Driving Under the Influence of Cannabis: Impact of Combining Toxicology Testing with Field Sobriety Tests.Clin Chem2023
36645386In Control?J Appl Lab Med2023
34750644Assessment of serum total 25-hydroxyvitamin D assays for Vitamin D External Quality Assessment Scheme (DEQAS) materials distributed at ambient and frozen conditions.Anal Bioanal Chem2022
36127613A User-Friendly Sample Preparation Alternative for Manual and Automated LC-MS/MS Quantification of Testosterone.Methods Mol Biol2022
36261071Elevated methylmalonic acid as an acquired inborn error of metabolism in a domino liver transplant recipient.Clin Chim Acta2022
35111768The Relationship Between Plasma Tetrahydrocannabinol Levels and Intraocular Pressure in Healthy Adult Subjects.Front Med (Lausanne)2022
35080588Driving Performance and Cannabis Users' Perception of Safety: A Randomized Clinical Trial.JAMA Psychiatry2022
34893795Emergency Department Management of Chest Pain With a High-Sensitivity Troponin-Enabled 0/1-Hour Rule-Out Algorithm.Am J Clin Pathol2022
34432104Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 - Part 1 liquid chromatography - tandem mass spectrometry (LC-MS/MS) assays - impact of 3-epi-25-hydroxyvitamin D<sub>3</sub> on assay performance.Anal Bioanal Chem2022
34403464Mass Spectrometry-Based Detection of Beta Lactam Hydrolysis Enables Rapid Detection of Beta Lactamase Mediated Antibiotic Resistance.Lab Med2022
33388312Healthcare worker seroconversion for SARS-CoV-2 at two large health systems in San Diego.Am J Infect Control2021
33909102Cannabidiol reduces withdrawal symptoms in nicotine-dependent rats.Psychopharmacology (Berl)2021
33758902SARS-CoV-2 Serology Status Detected by Commercialized Platforms Distinguishes Previous Infection and Vaccination Adaptive Immune Responses.medRxiv2021
34545408Qua-Alluding to the Past: A Case of Methaqualone Analog Ingestion.J Anal Toxicol2021
34185831Biomarkers of Recent Cannabis Use in Blood, Oral Fluid and Breath.J Anal Toxicol2021
34160018Diagnostic Value of Procalcitonin in Transplant Patients Receiving Immunosuppressant Drugs: A Retrospective Electronic Medical Record-Based Analysis.Am J Clin Pathol2021
34077511SARS-CoV-2 Serologic Testing: Facts, Fiction, and Fallacies.Clin Chem2021
34184102Assessment of serum total 25-hydroxyvitamin D assay commutability of Standard Reference Materials and College of American Pathologists Accuracy-Based Vitamin D (ABVD) Scheme and Vitamin D External Quality Assessment Scheme (DEQAS) materials: Vitamin D Standardization Program (VDSP) Commutability Study 2.Anal Bioanal Chem2021
34183368A Rapid Assay for SARS-CoV-2 Neutralizing Antibodies That Is Insensitive to Antiretroviral Drugs.J Immunol2021
34173005Blood and Oral Fluid Cannabinoid Profiles of Frequent and Occasional Cannabis Smokers.J Anal Toxicol2021
34170314SARS-CoV-2 Serology Status Detected by Commercialized Platforms Distinguishes Previous Infection and Vaccination Adaptive Immune Responses.J Appl Lab Med2021
34229342Weakness and Low Potassium in a 47-Year-Old Male.Clin Chem2021
31696920Acidic Drug Concentrations in Postmortem Vitreous Humor and Peripheral Blood.J Anal Toxicol2021
33084854Commercial Serology Assays Predict Neutralization Activity against SARS-CoV-2.Clin Chem2021
31527291Validation of a liquid chromatography tandem mass spectrometry (LC-MS/MS) method to detect cannabinoids in whole blood and breath.Clin Chem Lab Med2020
32001233The 99th percentile upper reference limit for the 5th generation cardiac troponin T assay in the United States.Clin Chim Acta2020
32057077Calibrating from Within: Multipoint Internal Calibration of a Quantitative Mass Spectrometric Assay of Serum Methotrexate.Clin Chem2020
32738674An evaluation of postmortem concentrations of ο<sup>9</sup>-tetrahydrocannabinol (THC) and 11-nor-9-carboxy-ο<sup>9</sup>-tetrahydrocannabinol (THCCOOH).Forensic Sci Int2020
32766840Multi-Platform Comparison of SARS-CoV-2 Serology Assays for the Detection of COVID-19.J Appl Lab Med2020
32428207Longitudinal Monitoring of SARS-CoV-2 IgM and IgG Seropositivity to Detect COVID-19.J Appl Lab Med2020
30615854Validation of a liquid chromatography-tandem mass spectrometry method for analyzing cannabinoids in oral fluid.Clin Chim Acta2019
31659079A Dilution Method to Mitigate Biotin Interference in Cardiac Troponin T Testing.J Appl Lab Med2019
31152695Analytical performance evaluation of the Elecsys® Troponin T Gen 5 STAT assay.Clin Chim Acta2019
30115396Liquid Chromatography-Mass Spectrometry Education for Clinical Laboratory Scientists.Clin Lab Med2018
33636894Interpretation of Pain Management Testing Results Using Case Examples.J Appl Lab Med2018
30236830Multicenter assessment of a hemoglobin A1c point-of-care device for diagnosis of diabetes mellitus.Clin Biochem2018
27448790Near death from a novel synthetic opioid labeled U-47700: emergence of a new opioid class.Clin Toxicol (Phila)2017
28360086Potential Impact and Study Considerations of Metabolomics in Cardiovascular Health and Disease: A Scientific Statement From the American Heart Association.Circ Cardiovasc Genet2017
28239173Acute kidney disease and renal recovery: consensus report of the Acute Disease Quality Initiative (ADQI) 16 Workgroup.Nat Rev Nephrol2017
28801091How much is too much? Two contrasting cases of excessive vitamin D supplementation.Clin Chim Acta2017
28013286Positive Predictive Value of PCP Immunoassay at UC San Diego Health.J Anal Toxicol2017
27744720U-47700 Reply.Clin Toxicol (Phila)2017
26945835Assessment and Comparison of Vitreous Humor as an Alternative Matrix for Forensic Toxicology Screening by GC-MS.J Anal Toxicol2016
26553795Effective Use of Mass Spectrometry in the Clinical Laboratory.Clin Chem2016
26473523Evaluation of the Waters MassTrak LC-MS/MS Assay for Tacrolimus and a Comparison to the Abbott Architect Immunoassay.Ther Drug Monit2016
26522657Reference intervals of urinary acute kidney injury (AKI) markers [IGFBP7]â¿¿[TIMP2] in apparently healthy subjects and chronic comorbid subjects without AKI.Clin Chim Acta2016
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Collaborators

Alan S Maisel
University of California
Co-authored papers 13
Paul Clopton
Department of Medicine and Cardiovascular Institute, Stanford University
Co-authored papers 11
Ronald W McLawhon
University of California San Diego
Co-authored papers 8
Igor Grant
University of California San Diego
Co-authored papers 8
Anya Umlauf
University of California San Diego
Co-authored papers 5
John A Kellum
Spectral Medical Inc.
Co-authored papers 5
Lakhmir S Chawla
Veterans Affairs Medical Center San Diego
Co-authored papers 4
Andrew N Hoofnagle
Co-authored papers 4
Sharon L Reed
university of california san diego Health
Co-authored papers 4
Lori B Daniels
University of California San Diego (university of california san diego)
Co-authored papers 3
Joely A Straseski
University of Utah Health Sciences Center
Co-authored papers 3
Saeed A Jortani
University of Louisville
Co-authored papers 3
Ramon Durazo-Arvizu
Co-authored papers 3
Nigel J Clarke
Co-authored papers 2
Christopher R deFilippi
Co-authored papers 2
William F Peacock
Baylor College of Medicine
Co-authored papers 2
Jay L Koyner
University of Chicago, Pritzker School of Medicine
Co-authored papers 2
Azra Bihorac
University of Florida, Univerzitet u Sarajevu Medicinski Fakultet
Co-authored papers 2
Alexander T Limkakeng
Duke University
Co-authored papers 2
Robert H Christenson
University of Maryland School of Medicine, University of Maryland
Co-authored papers 2
Judd E Hollander
Sidney Kimmel Medical College, Thomas Jefferson University
Co-authored papers 2
Steven L Gonias
University of California san francisco
Co-authored papers 2
Scott Mullaney
University of California, San Diego School of Medicine
Co-authored papers 1
Kenneth Krell
Eastern Idaho Regional Medical Center
Co-authored papers 1
Michael Heung
University of Michigan ann arbor
Co-authored papers 1
George E Demuth
Co-authored papers 1
Hung T Nguyen
Loma Linda University
Co-authored papers 1
Claudio Ronco
International Renal Research Institute of Vicenza (IRRIV)
Co-authored papers 1
Sandra L Kane-Gill
Department of Pharmacy and Therapeutics, School of Pharmacy, University of Pittsburgh
Co-authored papers 1
Thomas J Wang
Vanderbilt University
Co-authored papers 1
Release 1.2