Research output per year
Research output per year
- 45 results
Search results
-
2025
Assessing knowledge gaps and educational needs in urine drug test interpretation among health care professionals
Snozek, C. L. H., Yee, C. I., Bryksin, J., Dahal, R., Gerson, B., Gherasim, C., Hauff, K. D., Heger, N., Huestis, M. A., Johnson-Davis, K. L., Knezevic, C. E., Love, S. A., Melanson, S. E. F., Noguez, J. H., Pikulski, M., Roper, S., Tyagi, M., Warrington, J. S., Yang, H. S. & Yang, Y. K., Jan 1 2025, In: American journal of clinical pathology. 163, 1, p. 69-79 11 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Cardiac troponin I is associated with ICU admission in pediatric patients with RSV
Brown, M., Lawless, S., Roemmich, B., Roper, S. M. & Farnsworth, C. W., Mar 2025, In: Clinical Biochemistry. 136, 110896.Research output: Contribution to journal › Article › peer-review
Open Access -
Racial Equity in Urine Drug Screening Policies in Labor and Delivery
Azimi, V., Trammel, C., Nacke, L., Rubin, A., Stevenson, L., Vaughn, B., Roper, S. M., Zaydman, M. A., Jackups, R., Riaz, N., Schamel, K. P. & Kelly, J., Mar 3 2025, In: JAMA Network Open. 8, 3, p. e250908Research output: Contribution to journal › Article › peer-review
Open Access -
Xylazine Positivity in Opioid-positive Drug Screens on an Inpatient Labor Unit
Trammel, C., Azimi, V., Crews, B., Roper, S., Raghuraman, N., Carter, E. B., Frolova, A., Odibo, A. O., Lawlor, M. & Kelly, J. C., Mar 1 2025, In: Journal of Addiction Medicine. 19, 2, p. 233-235 3 p.Research output: Contribution to journal › Article › peer-review
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2024
Estimation of gestational age-specific reference intervals for coagulation assays in a neonatal intensive care unit using real-world data
Lalos, N., Vesoulis, Z., Maucione, C., Eby, C., Dietzen, D. J., Roper, S. M. & Spies, N. C., Dec 2024, In: Journal of Thrombosis and Haemostasis. 22, 12, p. 3473-3478 6 p.Research output: Contribution to journal › Article › peer-review
Open Access -
High-sensitivity neonatal urine drug testing has similar positivity rates to meconium for detecting in utero exposure to methamphetamine and cocaine
Brown, H. M., Roper, S. M., Dietzen, D. J. & Crews, B. O., Mar 1 2024, In: Journal of Analytical Toxicology. 48, 2, p. 99-103 5 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Laboratory Testing in Infants and Children
Lo, S. F. & Roper, S. M., Jan 1 2024, Nelson Textbook of Pediatrics: Volume 1-2. Elsevier, p. 4472.e3-4472.e7Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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Reference Intervals for Laboratory Tests and Procedures
Lo, S. F. & Roper, S. M., Jan 1 2024, Nelson Textbook of Pediatrics: Volume 1-2. Elsevier, p. 4472.e8-4472.e20Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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2023
Biochemical characterization of patients with dihydrolipoamide dehydrogenase deficiency
Wongkittichote, P., Cuddapah, S. R., Master, S. R., Grange, D. K., Dietzen, D., Roper, S. M. & Ganetzky, R. D., Sep 2023, In: JIMD Reports. 64, 5, p. 367-374 8 p.Research output: Contribution to journal › Article › peer-review
Open Access8 Scopus citations -
Cannabis positivity rates in 17 emergency departments across the United States with varying degrees of marijuana legalization
Tolan, N. V., Krasowski, M. D., Mathias, P. C., Wiencek, J. R., Babic, N., Chai, P. R., Chambliss, A. B., Choucair, I., Demetriou, C. A., Erickson, T. B., Feldhammer, M., French, D., Hayes, B. D., Kang, P., El-Khoury, J. M., Knezevic, C. E., Monte, A., Nerenz, R. D., Okorodudu, A. O. & Roper, S. M. & 7 others, , 2023, In: Clinical Toxicology. 61, 4, p. 248-259 12 p.Research output: Contribution to journal › Article › peer-review
Open Access6 Scopus citations -
Frequency of Fentanyl Analogs and Metabolites Detected by LC-MS/MS in Clinical Specimens
Omosule, C. L., Roper, S. M. & Farnsworth, C. W., Mar 1 2023, In: Journal of Applied Laboratory Medicine. 8, 2, p. 428-430 3 p.Research output: Contribution to journal › Letter › peer-review
1 Scopus citations -
GPT-4 Underperforms Experts in Detecting IV Fluid Contamination
Spies, N. C., Hubler, Z., Roper, S. M., Omosule, C. L., Senter-Zapata, M., Roemmich, B. L., Brown, H. M., Gimple, R. & Farnsworth, C. W., Nov 1 2023, In: The journal of applied laboratory medicine. 8, 6, p. 1092-1100 9 p.Research output: Contribution to journal › Article › peer-review
5 Scopus citations -
Raising the Dead Volume: Analysis of Microsamples Diluted and Corrected with Near Infrared Tracer
Dietzen, D. J., Blair, C. J. & Roper, S. M., Sep 1 2023, In: The journal of applied laboratory medicine. 8, 5, p. 931-939 9 p.Research output: Contribution to journal › Article › peer-review
1 Scopus citations -
Reexamining the Minimum Sweat Rate Requirement for Sweat Chloride Testing
Omosule, C. L., Dietzen, D. J. & Roper, S. M., Nov 1 2023, In: The journal of applied laboratory medicine. 8, 6, p. 1084-1091 8 p.Research output: Contribution to journal › Article › peer-review
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2022
A 3-Year-Old Girl with Acute Liver Failure and Status Epilepticus
Wongkittichote, P., Dietzen, D. J., Grange, D. K. & Roper, S. M., Nov 1 2022, In: Clinical chemistry. 68, 11, p. 1471-1474 4 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
A Seizure-Like Episode in a Healthy 12-Month Old
Tawiah, K. & Roper, S. M., Aug 1 2022, In: Clinical chemistry. 68, 8, p. 1108-1110 3 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Comparison of the Friedewald equation with Martin and Sampson equations for estimating LDL cholesterol in hypertriglyceridemic adults
Azimi, V., Farnsworth, C. W. & Roper, S. M., Oct 2022, In: Clinical Biochemistry. 108, p. 1-4 4 p.Research output: Contribution to journal › Article › peer-review
7 Scopus citations -
Comprehensive Determination of Amino Acids for Diagnosis of Inborn Errors of Metabolism
Roper, S. M., Weindel, A. L. & Dietzen, D. J., 2022, Methods in Molecular Biology. Humana Press Inc., p. 55-64 10 p. (Methods in Molecular Biology; vol. 2546).Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
1 Scopus citations -
Detecting Fentanyl Analogs in Urine Using Precursor Ion Scan Mode
Budelier, M. M., Franks, C. E., Farnsworth, C. W. & Roper, S. M., Mar 1 2022, In: Journal of Analytical Toxicology. 46, 2, p. 157-162 6 p.Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
Development and Implementation of One-Step, Broad-Spectrum, High-Sensitivity Drug Screening by Tandem Mass Spectrometry in a Pediatric Population
Tesfazghi, M. T., Bardelmeier, R., Saunders, A. N., Riley, S. M., Roper, S. M. & Dietzen, D. J., Mar 1 2022, In: The journal of applied laboratory medicine. 7, 2, p. 409-420 12 p.Research output: Contribution to journal › Article › peer-review
6 Scopus citations -
Pediatric ionized calcium reference intervals from archived radiometer data
Omosule, C. L., Holmes, V., Jasek, C. & Roper, S. M., Jun 2022, In: Clinical Biochemistry. 104, p. 13-18 6 p.Research output: Contribution to journal › Article › peer-review
3 Scopus citations -
2021
Hepatic and gastrointestinal disorders
Kulkarni, S., Roper, S. M. & Stoll, J. M., Jan 1 2021, Biochemical and Molecular Basis of Pediatric Disease. Elsevier, p. 229-266 38 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
2 Scopus citations -
In-vitro study of lithium binding by sodium zirconium cyclosilicate (Lokelma®) or patiromer (Veltassa®)
Liss, D. B., Roper, S. M., Dietzen, D. J. & Mullins, M., 2021, In: Toxicology Communications. 5, 1, p. 161-164 4 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
Laying the Foundation for Utilizing Cardiac Markers in Children and Infants
Roper, S. & Cao, J., Mar 1 2021, In: Journal of Applied Laboratory Medicine. 6, 2, p. 337-340 4 p.Research output: Contribution to journal › Editorial
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Progression of SARS-CoV-2 Seroprevalence in St. Louis, Missouri, through January 2021
Smith, B. K., Janowski, A., Fremont, A. C., Adams, L. J., Dai, Y. N., Farnsworth, C., Gronowski, A., Roper, S., Wang, D. & Fremont, D., Aug 2021, In: mSphere. 6, 4, p. 1-5 5 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
Seroprevalence of SARS-CoV-2 Antibodies in Children and Adults in St. Louis, Missouri, USA
Smith, B. K., Janowski, A. B., Danis, J. E., Harvey, I. B., Zhao, H., Dai, Y. N., Farnsworth, C. W., Gronowski, A. M., Roper, S., Fremont, D. H. & Wang, D., Jan 2021, In: mSphere. 6, 1, p. 1-7 7 p., e01207-20.Research output: Contribution to journal › Article › peer-review
Open Access24 Scopus citations -
Yield of Serum Dexamethasone Measurement for Reducing False-Positive Results of Low-Dose Dexamethasone Suppression Testing
Roper, S. M., Mar 1 2021, In: The journal of applied laboratory medicine. 6, 2, p. 480-485 6 p.Research output: Contribution to journal › Article › peer-review
Open Access7 Scopus citations -
2020
Atypical Findings on a Urine Organic Acid Profile
Farnsworth, C. W., Dietzen, D. & Roper, S. M., Mar 1 2020, In: The journal of applied laboratory medicine. 5, 2, p. 388-393 6 p.Research output: Contribution to journal › Article › peer-review
Open Access1 Scopus citations -
Comparison of Two Commercially Available Fentanyl Screening Immunoassays for Clinical Use
Budelier, M. M., Franks, C. E., Logsdon, N., Jannetto, P. J., Scott, M. G., Roper, S. M. & Farnsworth, C. W., Nov 2020, In: Journal of Applied Laboratory Medicine. 5, 6, p. 1277-1286 10 p.Research output: Contribution to journal › Article › peer-review
14 Scopus citations -
Elevated lipase in an infant with altered mental status
González, I. & Roper, S., 2020, In: Lab Medicine. 51, 4, p. E38-E41Research output: Contribution to journal › Article › peer-review
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Local delivery of tobramycin and vancomycin in primary total knee arthroplasty achieves minimum inhibitory concentrations for common bacteria causing acute prosthetic joint infection
Lawrie, C. M., Jo, S., Barrack, T., Roper, S., Wright, R., Nunley, R. M. & Barrack, R. L., May 2020, In: Bone and Joint Journal. 102-B, 6, p. 163-169 7 p.Research output: Contribution to journal › Article › peer-review
18 Scopus citations -
2019
An often-missed laboratory error
Budelier, M. M., Farnsworth, C. W. & Roper, S. M., Jun 2019, In: Clinical chemistry. 65, 6, p. 814-815 2 p.Research output: Contribution to journal › Comment/debate
Open Access -
Commentary
Roper, S. M., 2019, In: Clinical chemistry. 65, 12, p. 1495-1496 2 p.Research output: Contribution to journal › Comment/debate
Open Access -
2018
Accuracy of Two Progesterone Immunoassays for Monitoring In Vitro Fertilization
Roper, S. M., Rubin, J. R., Ali, M., Gibbons, W. E., Zarutskie, P. W. & Devaraj, S., Mar 1 2018, In: The journal of applied laboratory medicine. 2, 5, p. 770-776 7 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
Adolescent Female with Jaundice and Edema
Ali, M., Roper, S., Cao, J. & Devaraj, S., Mar 1 2018, In: The journal of applied laboratory medicine. 2, 5, p. 797-802 6 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Confounding case of hemolysis in a patient with acute leukemia
Tesfazghi, M. T., Farnsworth, C. W., Roper, S. M., Gronowski, A. M. & Dietzen, D. J., Dec 2018, In: Clinical chemistry. 64, 12, p. 1690-1694 5 p.Research output: Contribution to journal › Article › peer-review
Open Access1 Scopus citations -
Evaluation of a multiplex liquid chromatography-tandem mass spectrometry method for congenital adrenal hyperplasia in pediatric patients
Cao, J., Sonilal, M., Roper, S. M., Ali, M. & Devaraj, S., Aug 2018, In: Clinical Mass Spectrometry. 9, p. 18-22 5 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
2017
CYP3A5 genotyping may reduce the cost of care and guide dosing in paediatric renal transplant recipients treated with tacrolimus: A report of two paediatric renal transplant cases
Roper, S. M., Michael, M., Brewer, E. D., Lee, J., Orjuela, A. H., Akbas, N. & Devaraj, S., 2017, In: Australasian Medical Journal. 10, 5, p. 413-417 5 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Performance of calculated and directly measured low-density lipoprotein cholesterol in a pediatric population
Roper, S. M., Cao, J., Tam, E. & Devaraj, S., 2017, In: American journal of clinical pathology. 148, 1, p. 42-48 7 p.Research output: Contribution to journal › Article › peer-review
Open Access5 Scopus citations -
Reducing Errors in an Emergency Center Setting Using an Automated Fluorescence Immunoassay for Group A Streptococcus Identification
Roper, S. M., Edwards, R., Mpwo, M., Mutandiro, C. & Devaraj, S., Jun 1 2017, In: Clinical Pediatrics. 56, 7, p. 675-677 3 p.Research output: Contribution to journal › Article › peer-review
3 Scopus citations -
To fast or not to fast? Comments on the consensus statement from the European atherosclerosis society/European federation of clinical chemistry and laboratory medicine
Devaraj, S., Cao, J. & Roper, S. M., Apr 2017, In: Archives of Pathology and Laboratory Medicine. 141, 4, p. 487-489 3 p.Research output: Contribution to journal › Editorial
Open Access5 Scopus citations -
Validation of an Automated Assay for Levetiracetam (Keppra) on Vitros 5600
Ali, M., Tam, E., Roper, S. M., Cao, J. & Devaraj, S., Mar 1 2017, In: The journal of applied laboratory medicine. 1, 5, p. 494-501 8 p.Research output: Contribution to journal › Article › peer-review
Open Access4 Scopus citations -
2014
Pancreatic islet neuropeptide Y overexpression has minimal effect on islet morphology and β-cell adaptation to high-fat diet
Machida, Y., Bruinsma, C., Hallinger, D. R., Roper, S. M., Garcia, E., Trevino, M. B., Nadler, J., Ahima, R. & Imai, Y., Dec 1 2014, In: Endocrinology. 155, 12, p. 4634-4640 7 p.Research output: Contribution to journal › Article › peer-review
Open Access9 Scopus citations -
2013
Targeted glycoprotein enrichment and identification in stromal cell secretomes using azido sugar metabolic labeling
Roper, S. M., Zemskova, M., Neely, B. A., Martin, A., Gao, P., Jones, E. E., Kraft, A. S. & Drake, R. R., Jun 2013, In: Proteomics - Clinical Applications. 7, 5-6, p. 367-371 5 p.Research output: Contribution to journal › Article › peer-review
16 Scopus citations -
2008
Forensic aspects of DNA-based human identity testing.
Roper, S. M. & Tatum, O. L., 2008, In: Journal of forensic nursing. 4, 4, p. 150-156 7 p.Research output: Contribution to journal › Review article › peer-review
4 Scopus citations