Mehmet Fatih Alpdemir, Medine Alpdemir
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...
Journal of Turkish Clinical Biochemistry
•
2021-04-01
Bayram Şen, Medeni Arpa
Objective: The discrepancy between chemical and microscopic urine examination makes it demanding to interpret the results. We aimed to evaluate the laboratory personnels effect on the consistency between chemical and microscopic urine examination results.
...
Journal of Turkish Clinical Biochemistry
•
2023-08-01
Raziye Yıldız, Cevval Ulman
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...
Journal of Turkish Clinical Biochemistry
•
2023-12-01
Mehmet Akif Bozdayı, Gökhan Çakırca
Aim: This study aimed to evaluate the distribution and trends of ethanol analysis results according to age, gender, and ethanol concentration levels over a four-year period.
Materials and Methods: In this retrospective study, a total of 11,684 ethanol...
Journal of Turkish Clinical Biochemistry
•
2025-12-01
Giray Bozkaya, Sibel Bilgili
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...
Journal of Turkish Clinical Biochemistry
•
2022-04-01
Öznur Bilen, Özlem Gürsoy Çalan, Zekiye Sultan Altun, Pınar Akan, Canan Çoker
Objective: Transferrin isoform analysis is performed for diagnosis of congenital or acquired defects in
protein glycosylation. The reference method for transferrin isoform analysis is isoelectric focusing
electrophoresis. The objective of this study has been to perform...
Journal of Turkish Clinical Biochemistry
•
2016-08-01
Tevfik Balci, Merve Sibel Güngören, Saliha Uysal, Nejla Özer, Mehmet Aköz
Objective: Hemoglobinopathies are an array of disorders that affect hemoglobin (Hb) function. HPLC is
by far the most common technique used for detection of hemoglobinopathies worldwide. The aim of
this study is to evaluate 3-year retrospective data of a tertiary hospital in...
Journal of Turkish Clinical Biochemistry
•
2017-08-01
Editorial Office
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...
Journal of Turkish Clinical Biochemistry
•
2011-12-01
Nazife Doğan, Gökhan Ersoy
Aim: The entire analytical process in forensic toxicology is defined in medical laboratory regulation,
standarts and guidances. The aim of this study is to evaluate the suitability of forensic toxicological
analysis to the quality management process according to different...
Journal of Turkish Clinical Biochemistry
•
2020-08-01
Sükriye Miray Kilincer Bozgul, Merve Doğru Efgan, Zehra Tuba Karaman, Rabia Yelli, Hande Dik Avcı, Güneş Ak, Ajda Güneş, Caner Acar, İlkçe Akgün Kurtulmuş, Devrim Bozkurt
Aim: In the present study, we aimed to evaluate the association between disseminated intravascular coagulation (DIC) score and mortality among adult sepsis patients in intensive care unit (ICU).
Material and Methods: In this retrospective cohort study,...
Journal of Turkish Clinical Biochemistry
•
2024-08-01
Okan Yılmaz, Miraç Seher Helvacı, Mustafa Şahin, Belkız Öngen İpek, Okan Dikker
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...
Journal of Turkish Clinical Biochemistry
•
2025-04-01
Zekiye Catak, Esra Koçdemir
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...
Journal of Turkish Clinical Biochemistry
•
2017-08-01
Sibel Bilgili, Özge Fenercioğlu, Gizem Ercan, Giray Bozkaya
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...
Journal of Turkish Clinical Biochemistry
•
2021-08-01
Büşra Zülfa Harmancık, Bilge Karatoy Erdem, İkbal Özen Küçükçetin, Sibtain Ahmed, Sadıka Halide Akbaş
Aim: Oxysterols are derivatives of cholesterol which are formed by oxidation through numerous chemical reactions and play an important role in many physiological processes and in various degenerative and metabolic diseases, lipid metabolism disorders. In this study, analytical...
Journal of Turkish Clinical Biochemistry
•
2024-08-01
Erdem Çokluk, Fatıma Betül Tuncer, M. Ramazan Şekeroğlu, Selin Tunalı Çokluk
Aim: The aim of the study was to evaluate the sample rejections reasons by the quality indicators and
six sigma process, to determine the acceptability of the rejection reasons and to improve them during
the follow-up process.
Material and Method: The...
Journal of Turkish Clinical Biochemistry
•
2020-04-01
Mert Üğe
Objective: Thyroid function, influenced by age and sex, provides important epidemiological information when evaluated at the population level. This study aimed to investigate age- and sex-related differences in thyroid-stimulating hormone (TSH), free triiodothyronine (fT3),...
Journal of Turkish Clinical Biochemistry
•
2026-06-01
•
DOI: 10.65717/jtcb.2026.26004
Özgür Baykan, Sema Bülte
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...
Journal of Turkish Clinical Biochemistry
•
2018-04-01
Ferhat Demirci, Barış Sağlam, Pınar Akan, Dilek Çımrın
Objective: Graves' disease is an autoimmune disease which results in excessive production of thyroid
hormones and is the most common cause of hyperthyroidism. TRAb has a key role to confirm the
clinical diagnosis of Graves' disease. The different measurement methods have...
Journal of Turkish Clinical Biochemistry
•
2014-08-01
Hamit Yaşar Ellidağ, Esin Eren, Serpil Aktaş Tosun, Necat Yılmaz
Objective: HPLC (High Performance Liquid Chromatography) is the most commonly used method to differentiate the subtypes of hemoglobin in screening for hemoglobinopathy. Today, different models and trademarks of HPLC equipment have been used in screening for hemoglobinopathy....
Journal of Turkish Clinical Biochemistry
•
2013-12-01
İdris Mehmetoğlu, Aysel Kıyıcı, Sevil Kurban, Müfide Öncel
Background: Bromcresol green (BCG) and Bromcresol Purple (BCP) which are dye-binding based
methods are widely used in serum albumin analysis in clinical laboratories for many years. It was
suggested that discrepancies exist between these methods and these discrepancies are...
Journal of Turkish Clinical Biochemistry
•
2015-08-01
Evren Akgöl, Sedat Abuşoğlu, Hüseyin Tuğrul Çelik, Cevdet Züngün, Sevilay Sezer, Turan Turhan, Muhittin Serdar, Metin Yıldırımkaya
Objective: Vitamin D has several functions in cell growth, immunity, and metabolism. Vitamin D deficiency has been associated with rickets. In deficient states, there is a higher risk for autoimmune diseases, cancers, myocardial infarction, diabetes, and infectious diseases....
Journal of Turkish Clinical Biochemistry
•
2013-08-01
Sevim Eşmedere Eren, Banu Çaycı, Gökçe Atikeler, Özlem Gülbahar, Hatice Paşaoğlu
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...
Journal of Turkish Clinical Biochemistry
•
2013-04-01
Gülçin Erdal Şahingöz, Nilgün Işıksaçan, Murat Koşer
Aim: Point Of Care (POC) tests are quick tests that shorten the treatment period and are portable
devices, which are easy to use for non-laboratory personnel. In this study we aimed to compare the
results of INR (International Normalized Ratio) that were studied with POC...
Journal of Turkish Clinical Biochemistry
•
2021-08-01
Mehmet Gürbilek, Çiğdem Damla Deniz, Mehmet Sinan İyisoy, Gamze Demirel, Nahide Baran, Mehmet Özcan
Objective: Since the emergence of Coronavirus Disease 2019 (Covid-19) in December 2019, it has
turned into a pandemic. Covid-19 infection; can trigger pulmonary inflammation and also cause acute
lung injury. In cases with severe pneumonia, long hospital stays and high...
Journal of Turkish Clinical Biochemistry
•
2022-04-01
Okan Dikker, Mustafa Şahin
Aim: Immunofixation electrophoresis (IFE) is a gold standard biochemical technique used in the
diagnosis, treatment and follow-up of monoclonal gammopathies. In paraproteinemias, excessive
production of immunoglobulins (Ig) known as paraprotein or monoclonal protein...
Journal of Turkish Clinical Biochemistry
•
2018-12-01