Kamisha L. Johnson-Davis, PhD, DABCC (CC, TC)

Professor (Clinical), University of Utah School of Medicine

Specialties

• Therapeutic drug monitoring
• Drug screening
• Neonatal drug testing
• Trace and toxic elements

Education

• Doctorate Degree—Pharmacology, University of Utah
• Fellowship—Center for Human Toxicology
• Fellowship—Clinical Chemistry, University of Utah

Certification/Affiliations

• American Board of Clinical Chemistry (Clinical Chemistry, Toxicological Chemistry)
• Certification of Qualification, New York State Department of Health

Research Interests

• Assay development for drug testing by mass spectrometry and immunoassay
• Therapeutic drug monitoring in pediatric and adult patients
• Drug testing in oral fluid

Awards

• Travel Scholarship, AAMC Minority Faculty Career Development Seminar, 2014
• International Travel Grant, International Association of Therapeutic Drug Monitoring and Clinical Toxicology (IATDMCT), 16^th Congress, 2018

Recent Publications

• Wu F, Melis R, McMillin GA, et al. Retrospective data analysis of the influence of age and sex on TPMT activity and its phenotype-genotype correlation. J Appl Lab Med. 2019;3(5):827-838.
• Johnson-Davis KL. Opiate & benzodiazepine confirmations: to hydrolyze or not to hydrolyze is the question. J Appl Lab Med. 2018;2(4):564-572.
• Smith KA, Merrigan SD, Johnson-Davis KL. Selecting a structural analog as an internal standard for the quantification of 6-methylmercaptopurine by LC-MS/MS. J Appl Lab Med. 2018;3(3):384-396.
• Wong SH, Johnson-Davis KL, Garrison K, et al. Everolimus TDM using Thermo Fisher QMS immunoassay on Indiko, Beckman DxC, AU680, and AU5800 analyzers. J Clin Biochem. 2017;50(7-8):425-430.
• Wu F, Slawson MH, Johnson-Davis KL. Metabolic patterns of fentanyl, meperidine, methylphenidate, tapentadol and tramadol observed in urine, serum or plasma. J Anal Toxicol. 2017;41(4):289-299.
• Merrigan SD, Kish-Trier E, Seegmiller JC, et al. LC-MS/MS method for quantitation of mycophenolic acid, mycophenolic acid acyl-glucuronide and 7-O-mycophenolic acid glucuronide in serum. Clinical Mass Spectrometry. 2017;3:41-48.
• Marin SJ, Doyle K, Chang A, et al. One hundred false-positive amphetamine specimens characterized by liquid chromatography time-of-flight mass spectrometry. J Anal Toxicol. 2016;40(1):37-42.
• Johnson-Davis KL, Sadler AJ, Genzen JR. A retrospective analysis of urine drugs of abuse immunoassay true positive rates at a National Reference Laboratory. J Anal Toxicol. 2016;40(2):97-107.
• Yang HS, Wu AH, Johnson-Davis KL. Development and validation of an LC-MS/MS sulfonylurea assay for hypoglycemia cases in the emergency department. Clin Chim Acta. 2016;454: 130-134.
• Dasgupta A, Khalil SA, Johnson-Davis KL. Analytical performance evaluation of a new cobas tacrolimus assay on cobas e411 analyzer: comparison of values obtained by the cmia tacrolimus assay and a liquid chromatography combined with tandem mass spectrometric method. Ann Clin Lab Sci. 2016;46(2):204-208.
• Powers JL, Buys SS, Fletcher D, et al. Multigene and drug interaction approach for tamoxifen metabolite patterns reveals possible involvement of CYP2C9, CYP2C19, and ABCB1. J Clin Pharmacol. 2016;56(12):1570-1581.
• Dasgupta A, Davis B, Slawson MH, et al. Effect of carbamazepine 10, 11-epoxide on serum carbamazepine measurement using a new CMIA assay: comparison of values obtained by using PETINIA, CEDIA and liquid chromatography combined with tandem mass spectrometry. Ann Clin Lab Sci. 2016;46(3):242-246.
• Barakauskas VE, Bradshaw TA, Smith LD, et al. Process optimization to improve immunosuppressant drug testing turnaround time. Am J Clin Pathol. 2016;146(2):182-190.