Macit Koldaş, Hatice Seval, Gül Barut, İnci Yılmaz Sarı, Nergis Yamak, İbrahim Öz, Adem Akbaş
Purpose: To assess the role of NMP22 and cytology in diagnosing primary and recurrent bladder cancer and to compare the sensitivity, specificity, positive and negative predictive values, accuracy by means of staging, grading, dimensions and the number of the tumours.
...
Journal of Turkish Clinical Biochemistry
•
2003-12-01
Tevfik Noyan, Murat Cihan, Esra Yiğit, Fatih Ahmet Uzdu
Objective: The aim of this study was to retrospectively evaluate the performance of 2 glucometer devices using the accuracy criteria specified in ISO 15197:2015.
Methods: Glucose results obtained from Accu-Chek Inform II and Sejoy BG-707 glucometers,...
Journal of Turkish Clinical Biochemistry
•
2026-08-25
•
DOI: 10.65717/jtcb.2026.26027
Mehmet H. Köseoğlu, Serap Çuhadar
Laboratory data are very important in the diagnosis of diseases. The correct interpretation of laboratory data would help clinician to rule in or rule out the diagnosis. For the appropriate interpretation of laboratory tests, the diagnostic accuracy of the tests should be known. One of the...
Journal of Turkish Clinical Biochemistry
•
2012-12-01
Metin Demir, Ayşenur Atay, Serap Çuhadar, Nejla Barış, Mehmet H. Köseoğlu, Özgür Aslan, Tuna Semerci, Ataman Gönel
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...
Journal of Turkish Clinical Biochemistry
•
2010-08-01
Güler Buğdaycı, Erdinç Serin, Fatih Özcan
Objective: The objective of this study was to evaluate of accuracy of the immuno-turbidimetric method.
Material and Methods: Patients (n=160) were tested with the D-Dimer assay with a STalia®D-DI (D-dimer) (Diagnostica Stago, Asnieres, France). D-dimer...
Journal of Turkish Clinical Biochemistry
•
2008-12-01
Nuriye Uzuncan, Sibel Bilgili, Sezen Şahin, Giray Bozkaya
Objective: Iron Deficiency Anemia (IDA) and Beta Thalassemia Minor (BTM) are the most common
causes of microcytic hypochromic anemia. In the last four decades many formulas have been proposed
to discriminate between two common causes of microcytic hypochromic anemia. An...
Journal of Turkish Clinical Biochemistry
•
2019-04-01
Güler Buğdaycı, Erdinç Serin, Fatih Özcan
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...
Journal of Turkish Clinical Biochemistry
•
2007-08-01
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
Murat Akşit, Mustafa Terzioğlu, Merve Zeytinli Akşit, Tuba Kansu Altan, Banu İşbilen Başok, Ayfer Çolak
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...
Journal of Turkish Clinical Biochemistry
•
2023-12-01
Gülsüm Feyza Türkeş, Niyazi Samet Yılmaz, Muhittin Abdulkadir Serdar, Özlem Gülbahar
Objective: Automated hematology analyzer flags may provide early warning signals for hematological malignancies. This study aimed to evaluate the diagnostic performance of Sysmex XN-1000 analyzer flags and to develop a multivariable prediction model for identifying active...
Journal of Turkish Clinical Biochemistry
•
2026-08-25
•
DOI: 10.65717/jtcb.2026.26028
Yasemin Üstündağ, Kağan Huysal, Nilüfer Eren, Hatice Sanlı Avcı, Ayşe Ulusoy Karaca, Özdemir Özkan, Gülsevil Tarakçı, Serpil Sancar, Serap Şenel İbiş
Objective: IUrinary tract infection (UTI) is a common disease in children. Rapid and reliable diagnosis of UTI is mandatory for the prevention of complications. The aim of the present study was to assess whether or not automated urine analysis can be used as a rapid diagnostic...
Journal of Turkish Clinical Biochemistry
•
2013-12-01
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
Hamit Hakan Alp, Zübeyir Huyut, Erdem Çokluk, Mehmet Ramazan Şekeroğlu
Objective: The aim of this study is to determine the new median values of biochemical analytes used in
double and triple prenatal screening tests and to compare these values with the median values of the
package program used in screening tests.
Materials and...
Journal of Turkish Clinical Biochemistry
•
2018-04-01
Hatice Topaç, Aysel Hür, Ayşenur Atay, Mehmet Köseoğlu
Objectives: Urine specimen determinations sometimes may not be done immediately and may be studied by using urine strips which are ke pt in open air during routine work due to the conditions of study. In this study, the performance characteristics of urine strips and the...
Journal of Turkish Clinical Biochemistry
•
2005-08-01
Yasemin Üstündağ, Kağan Huysal, Gülsevil Tarakçı
Objective: Measurement of HbA1c is widely used in patients with diabetes mellitus as a monitor of retrospective glycemic control. Currently, more than 30 different methods are commercially available to measure HbA1c and these methods vary in the fraction of Hb measured and the...
Journal of Turkish Clinical Biochemistry
•
2011-04-01
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
Tülay Çevlik, Goncagül Haklar
Aim: Six Sigma is a quality management tool that helps continuously monitor and improve the performance of the tests in the clinical laboratory. The quality goal index (QGI) ratio represents the state of meeting the respective quality targets of both bias and precision. The...
Journal of Turkish Clinical Biochemistry
•
2023-04-01
Özlem Gülbahar, Ayşe Banu Çaycı, İrem Budakoğlu, Uğur Erçin, Neslihan Bukan, Hatice Paşaoğlu, Tuncay Nas
Objective: Gestational diabetes mellitus is one of the most frequent complications in pregnancy which may create a health risk for the mother and the child. Different criteria may be used in the diagnosis of gestational diabetes mellitus. In the present study we aimed to test...
Journal of Turkish Clinical Biochemistry
•
2010-08-01
Nilhan Nurlu Ayan, Ayşegül Keleş, Neval Aksoy, Nesrin Gareayaghi, Naciye Özden Serin
Purpose: Urinary tracts infections (UTI) are the most common cause of bacterial and hospital based
infections. The gold standard in the diagnosis of UTI is urine culture. Patients with suspected UTI are
usually requested for urinalysis simultaneously with urine culture. In...
Journal of Turkish Clinical Biochemistry
•
2015-12-01
Günnur Dikmen, Erkan Dikmen, Murat Kara, Ekber Şahin, Nezih Özdemir, Pakize Doğan
Objective: The presence of malignant pleural effusion in lung cancer refers to an advanced stage and the survive of these patients after surgical resection is unfortunately poor. The nature of pleural effusion should be clarified in lung cancer as it is important for accurate...
Journal of Turkish Clinical Biochemistry
•
2003-04-01
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
Esra Ekiz, Şermin Acar Duran, Mihriban Ulaş
Objective: Comparison of two patient-side glucometers, Accuchek Active (AC) and Optium Xceed
(OP)with autoanalyzer Olympus AU 2700 (OL), which uses the reference method.
Materials and Methods: 44 patients, aged over 18, who attended emergency and...
Journal of Turkish Clinical Biochemistry
•
2014-04-01
Mustafa Serteser, Tülay Köken, Ahmet Kahraman
Biological thiols are one of the most important anti-oxidant defense mechanism in protecting cells against oxidative stress. Their determination in biological materials is carried out mainly by different spectrophotometric assays. In this study; one of the commonly used spectrophotometric assay...
Journal of Turkish Clinical Biochemistry
•
2003-04-01
Burcu Barutçuoğlu, Güneş Ak
Numerous preanalytical variables that affect the coagulation testing have been defined over
the years. The three potential main topics where coagulation testing preanalytical issues may
arise are specimen collection (including patient selection), specimen transportation and
stability, specimen...
Journal of Turkish Clinical Biochemistry
•
2020-04-01
Yasemin Üstündağ, Kağan Huysal, Ayşe Ulusoy Karaca, Teoman Çınar, Serpil Sancar, Müberra Akdoğan
Objective: C-reactive protein (CRP) is one of acute phase respondents that has been used to monitor
infection and inflammation episodes. In our hospitals' emergency laboratory, CRP analysis is done
with a point of care testing device (i-chroma). In our central biochemistry...
Journal of Turkish Clinical Biochemistry
•
2010-04-01