Purpose: Laboratory tests are very important for diagnosis and tracking of disease and usage of laboratory testing has rised with each passing day. Unnecessary laboratory testing is one of the main reasons for increased laboratory use. In this study, we aimed to...

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: Increasing the role of laboratories in the diagnosis processes is associated with a growing number of the requested laboratory tests. However, this situation is considered as time consuming and also accompanied by an increase in costs, as well as additional...

Objective: The laboratory critical values are the laboratory testing results which required attention or action by the physicians. The aim of this study is to investigate the laboratory critical value notification process in our laboratory in terms of patient safety and...

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: It is reported that the first tests to evaluate thyroid functions in the guidelines of American Thyroid Association (ATA), American Association of Clinic Endocrinologs (AACE) and Turkey Endocrinology and Metabolism Association are thyroid stimulated hormone (TSH)...

Aim: The aim of this study was to calculate the uncertainty of the hs-cTn I test in which the clinical decision limit value was important and to evaluate the possible effect of the calculated measurement uncertainty for the test result interpretation at the clinical decision...

Aim: High-risk laboratory results, known as Critical or panic laboratory value, is an indicator of a lifethreatening condition. The test results of critical laboratory value levels that are not determined and communicated by clinicians prevent early diagnosis and treatment,...

Aim: Panic value refers to a laboratory test result that is life-threatening and requires immediate corrective action by the physician. Although there is no recommendation to re-run the panic-valued test, some laboratory specialists report the result after repeating the test....

Objective: The unnecessary test requesting has significant effect in the laboratory workload. The unnecessary demand and the additional cost of performed tests were discussed through the anemia approach algorithm.

Materials and Methods: We...

Objective: A questionnaire was created to measure and evaluate the satisfaction of Clinical Biochemistry Laboratory in Izmir Ataturk Training and Research Hospital.

Materials and Methods: The number of participants in the questionnaire were 263 and 141...

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: The aim of study was to determine unnecessary repeated total prostate specific antigen(tPSA) according to minimum retest interval and to evaluate the change between consecutive measurement results with RCV.

Material and Methods: According...

Objectives: This study aims to analyze the turnaround time (TAT) of intraoperative PTH (parathyroid hormone) testing and to support surgical success with objective criteria by calculating reference change values (RCV).

Methods: TAT analysis was...

Aim: Preanalytical errors, particularly during venous blood collection, are a significant source of laboratory diagnostic inaccuracies, accounting for most laboratory mistakes. Addressing these errors through systematic monitoring and targeted interventions is critical for...

Aim: Erythrocyte sedimentation rate is useful for diagnosis and follow up of diseases such as infections, inflamm atory diseases, traumatologic disorders and several cancer types. In this study, we compared ESR results of classical Westergren method and Test-1 analyser which...

Objective: The measurement of serum alcohol level is one of the most common tests in forensic and toxicologic laboratories. Measurement uncertainty is an analytical data which evaluate the reliability of a test. This study aims to evaluate the measurement uncertainty of the...

Objective: To determine the preanalytical errors in specimens sent from the emergency department to the laboratory and to evaluate the causes and the consequences.

Material and Methods: All the specimens sent from the emergency department were...

Purpose: Oral glucose tolerance test (OGTT) is a very important procedure in diagnosing diabetes mellitus. It is very crucial to perform OGTT according to the rules that must be taken into account in preparation period of the test. Our aim was to determine the level of...

Aim: The Intra-laboratory Turnaround Time (IR-TAT) serves as a significant measure of overall laboratory efficacy. This study sought to augment laboratory operational productivity and diminish IR-TAT by instating a Total Laboratory Automation (TLA) system, executing stat...

Objective: It's important to determine reliable reference intervals for all the test parameters of the clinical laboratory, but it's usually hard to obtain useful and necessary clinical data. Although the procedure of indirect determination of reference intervals using...

Purpose: Allowable total error (TEa) is an analytical quality specification setting acceptable limits for a single test result. It is used for sigmametric evaluation of test performance and description of control rules and measurement numbers. Total error of a test (TE)...

Objective: In the clinical laboratories, the same test could be analyzed by more than one assay system or analyzer due to various requirements. This may cause a problem in patient monitoring. In our laboratory, stat TSH testing has been recently implemented in the stat...

Objective: The purpose of this study is to determine the median values of the double test screening parameters in Bursa region and to reevaluate the test results positive risky pregnancies according to previous computer programme.

Materials and Methods:...