Background: The aim of this study is to assess the results of inspections in the last three years on drug abuse testing in medical laboratories according to the last regulations in Turkey.

Materials and Methods: The on-site inspections of medical...

Purpose: The importance of medical biochemistry laboratories has increased in the ongoing coronavirus disease 2019 (COVID-19) pandemic. This study aimed to reveal the current situation of medical biochemistry specialists and medical biochemistry laboratories in 1 year from...

Objective: A questionnaire was created for specialists and assistants of clinical biochemistry to evaluate Management of Clinical Biochemistry Laboratories.

Materials and Methods: 191 people attended in the questionnaire and 100 of participants were...

Aim: With the COVID-19 pandemic, clinicians' expectations from laboratory professionals and the desired test volumes have increased significantly. The specialist physicians do not sufficiently understand the laboratory team's workflow struggling with the pandemic at the...

Objective: It has been proposed that the homocysteine (Hcy) produced during the metabolism of methionine plays a role in etiopathogenesis of several diseases. The interest in measurement of plasma Hcy levels has increased recently upon the finding that Hcy is an independent...

Objective: Test analyses in laboratories must leave neither clinician nor patient in doubt. Measurement uncertainty must therefore be studied for all tests in laboratories. The aim of this study was to calculate the measurement uncertainty of the hormone...

Objective: Analytical reliability of clinical laboratories may be obtained by internal quality control, external quality control by analyzing the data with statistical methods. In Six Sigma Methodology, which is one of these methods, the analytical performance of the tests...

Introduction: The disease caused by SARS-CoV-2, which the World Health Organization has considered as a pandemic, was named COVID-19 and has since spread worldwide. The COVID-19 pandemic has drastically changed the way we live and work. During events like COVID-19, it is...

Objective: Use of C-Reactive protein in the follow-up of different clinical situations is getting more important. Levels of CRP can be detected by immunonephelometric and immunoturbidimetric methods in the clinical laboratories. The emergency departmentÕs laboratory renders...

Aim: Quality improvement studies in clinical laboratories play a vital role in achieving accurate and reliable patient results. Measurement uncertainty is important for the quality and reliability of test results. Since laboratory results inherently involve uncertainty, ISO...

Aim: The measurement uncertainty (MU) of high-sensitivity troponin T (hs-TnT) and myoglobin assays was calculated in accordance with ISO/TS 20914:2019. The calculated MU values were subsequently compared with the relevant analytical performance specifications (APS).

Objective: Blood collection tubes with a clot activator are widely used in clinical laboratories. Unexpectedly high results in folate assays obtained on Siemens Advia Centaur XP analyzer triggered a need for an investigation of the effects of blood collection tubes on folate...

Aim: Method evaluation studies should be carried out for every new method planned to be used in laboratories. The aim of this study is to determine the analytical performance of the immunoassay method used for determining of plasma 25-hydroxy vitamin D levels and also to...

Background: A sedentary lifestyle is associated with cardiometabolic risk factors and obesity. This study aims to investigate the effects of regular exercise training, acute exercise, and a sedentary lifestyle on levels of miRNA-33, miRNA-335, miRNA-370, miRNA-758, which...

Purpose: In recent decades, several new techniques for measuring erytrocyte sedimentation rate have been developed in clinical laboratories. The aim of this study to compare three different automated sedimentation analyzers (Micro TEST-1, Sedisystem, Sed Rate Screener) with...

Objective: Immune methods those were used in the laboratories for serum TSH measurements, were standardized. Functional sensitivity of TSH tests is expected to be ²0.02 mIU/L. We aimed to compare the performances of three different immunassay devices for third generation TSH...

Aim: Six Sigma methodology used in clinical laboratories is a quality management tool based on statistical calculations, focusing on process variables and providing information about process performance. In this study, we aimed to evaluate the analytical process performances...

Objective: Thyroid function tests (TFT) are the most frequently requested endocrine tests from clinical laboratories. Although the guidelines published by the American and British Thyroid Associations suggest the use of thyroid stimulating hormone (TSH) as a first step test...

Objective: If a new analyzer in the laboratories is considered to be used, method comparison should be done. Two analyzers should be compared in order to evaluate accuracy of the new analyzer. In our study, we aimed to compare the performance of new coagulation analyzer with...

Aim: Vitamin D deficiency is a common public health problem in our country. It is possible to find data reaching 90% in studies about determining deficiency prevalence. In recent years, this deficiency has been attracted the attention of the press and has directed people to...