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Prognostic relevance of pericardial effusion in patients with malignant diseases

Jeong TD, Jang S, Park CJ, Chi HS

No abstract available.
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Intactness of Medical Nonsterile Gloves on Use of Alcohol Disinfectants

Chang J, Jeong TD, Lee S, Kim Y, Lee J, Lee HK, Kwon HJ

No abstract available.
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Development and Evaluation of a Laboratory Information System-Based Auto-Dilution and Manual Dilution Algorithm for Alpha-Fetoprotein Assay

Jeong TD, Kim SY, Lee W, Chun S, Min WK

No abstract available.
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Accuracy of Creatinine Assay According to Expanded Proficiency Testing in Participants

Jeong TD

Background: In 2020, the accuracy-based creatinine assay (ABCr) proficiency testing (PT) survey was transitioned from an optional to a mandatory program of the Korean Association of External Quality Assessment Service...
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Annual Report of the Korean Association of External Quality Assessment Service on Accuracy-Based Creatinine Testing (2022)

Jeong TD

This study aimed to analyze and report the results of the 2022 accuracybased creatinine proficiency testing (ABCr PT) program conducted by the Korean Association of External Quality Assessment Service. The...
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Performance Evaluation of the Point-of-Care Cardiac Troponin T Assay

Kim YH, Jeong TD, Hong KS

BACKGROUND: The point-of-care (POC) troponin T assay has been used in various clinical settings. Recently, a POC troponin T assay with an extended measurable range (40 ng/L-2,000 ng/L) was introduced....
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A Clue to Discovering Unstable Hemoglobin Variants via Abnormal WBC Differential Scattergrams Using the Sysmex Automated Hematology Analyzer

Park S, Jeong TD, Hong KS, Huh J

Incidentally, hemoglobin (Hb) variants can be detected using HbA1c tests in clinical laboratories. We found 38 patients with Hb variants after reviewing a total of 29,398 HbA1c test results from...
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Estimated Glomerular Filtration Rates Show Minor but Significant Differences Between the Single and Subgroup Creatinine-Based Chronic Kidney Disease Epidemiology Collaboration Equations

Park S, Jeong TD

The creatinine-based Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation can be calculated according to race, sex, and creatinine concentration (subgroup equation) or in the form expressed by one equation (single...
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Application of Six Sigma Metrics to Improve Quality Control for Point-of-care Glucose Testing

Park S, Lee W, Jeong TD, Chung HS, Hong KS

Objectives: Six sigma is a quality management system for the assessment of precisionand accuracy. We aim to apply the six sigma rule to quality control (QC) of point-of-care(POC) glucose meters...
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Comparison of Red Blood Cell Hemolysis Using Plasma and Serum Separation Tubes for Outpatient Specimens

Ko DH, Won D, Jeong TD, Lee W, Chun S, Min WK

BACKGROUND: To rapidly obtain outpatient results, we use plasma separation tubes (PST) for chemistry analysis. If lactate dehydrogenase measurement is required, serum separation tubes (SST) are used. There has been...
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Report of the Korean Association of External Quality Assessment Service on Accuracy-Based Creatinine Testing in Korea (2020–2021)

Jeong TD, Yun YM

The accuracy-based creatinine (ABCr) proficiency testing (PT) program of the Korean Association of External Quality Assessment Service has become a mandatory program since 2020. This study analyzes the results of...
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Performance Evaluation of the Elecsys Neuron-Specific Enolase Assay

Kim SK, Jeong TD, Lee W, Chun S, Min WK

BACKGROUND: Neuron-specific enolase (NSE) is an enzyme specifically found in neurons and neuroendocrine tissue. It is a common marker for small cell lung cancer diagnosis and is also useful as...
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Accuracy-Based Proficiency Testing of Creatinine Measurement: 7 Years' Experience in Korea

Jeong TD, Lee HA, Lee K, Yun YM

BACKGROUND: Standardization of creatinine assay is consistently performed and much effort has been put into improving the accuracy of the results. We aimed to analyze the results of accuracy-based proficiency...
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Performance Evaluation of Beckman Coulter AU5822 Automated Clinical Chemistry Analyzer

Kim SK, Jeong TD, Lee W, Chun S, Min WK

  • KMID: 2312246
  • Lab Med Online.
  • 2014 Apr;4(2):77-84.
BACKGROUND: AU5822 Automated Clinical Chemistry Analyzer (Beckman Coulter, USA) is a fully automated analytical platform designed for the analysis of general chemistry, specific serologic proteins, therapeutic drug monitoring, and drug...
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Installation of Network-Connected Point-of-Care Blood Glucose Meters

Oh SH, Jeong TD, Lee W, Chun S, Min WK

  • KMID: 2200496
  • J Lab Med Qual Assur.
  • 2013 Dec;35(2):138-142.
Point-of-care (POC) testing is desirable because of both the ease with which it can be administered and its short turnaround time. However, because standard POC devices cannot transmit test results...
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Prognostic Implications of Elevated Cardiac Troponin T in Patients with Acute Ischemic Stroke

Jung CL, Jeong TD, Hong KS

BACKGROUND: Elevated cardiac troponin T (cTnT) levels have been reported in patients with acute ischemic stroke, however, the prognostic relevance is not well established. We evaluated the association between cTnT...
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Performance Evaluation of the LABGEO PT10 Point-of-care Chemistry Analyzer

Jeong TD, Lee W, Chun S, Min WK

  • KMID: 2200487
  • J Lab Med Qual Assur.
  • 2013 Dec;35(2):70-80.
BACKGROUND: The Samsung LABGEO PT10 (Samsung Electronics, Korea) has been developed as a point-of-care testing (POCT) chemistry analyzer. We evaluated the performance of the Samsung LABGEO PT Biochemistry Test 15...
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Annual Report on the External Quality Assessment of Therapeutic Drug Monitoring and Testing for Drugs of Abuse in Korea (2013)

Jeong TD, Gu GG, Chun S, Kim JH, Therapeutic Drug Monitoring Subcommittee, The Korean Association of Quality Assurance for Clinical Laboratory

  • KMID: 2200449
  • J Lab Med Qual Assur.
  • 2014 Mar;36(1):12-22.
We performed two trials on the external quality assessment for therapeutic drug monitoring (TDM) and testing for drugs of abuse (DOA) organized by the Therapeutic Drug Monitoring (TDM) subcommittee of...
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Performance Evaluation of the ARCHITECT HE4 Assay

Cho EJ, Ko DH, Jeong TD, Lee W, Chun S, Min WK

BACKGROUND: Human epididymis protein 4 (HE4) is known to be overexpressed in ovarian cancer, and therefore, it can be considered an important biomarker of epithelial ovarian cancer. HE4 shows higher...
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Association of Vitamin D Deficiency with Diabetic Nephropathy

Hong Sh, Kim YB, Choi HS, Jeong TD, Kim JT, Sung YA

Background: Low 25-hydroxyvitamin D (25OHD) levels are associated with the incidence of type 2 diabetes mellitus (T2DM). However, the association between 25OHD and metabolic health status or diabetic complications is...
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