Aim: For laboratory analyses ordered by the physicians, different types and high amounts of blood samples are collected. The aim of this study is to determine the levels of blood loss with phlebotomy, and its effect on the Hb levels of the inward patients.

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Aim: Thyroid hormone tests show circadian rhythm. In this study we investigated the changes of Thyroid Stimulating Hormone (TSH) and free Thyroxine (fT4) test results in apparently healthy individuals and thyroid hormone replacement patients at different times of the...

Objective: Errors in clinical laboratories have an important effect on safety and care of patients. Thus, causes of specimen rejections should be identified and corrected to guarentee quality results. The objectives of this study were to identify and classify the causes of...

Children are quite different from adults not only as structurally, but also their metabolism and in terms of their response to the diseases. The most important variable is the age of the pediatric patients. Clinical biochemist must have knowledgeable about the differences in the interpretation...

Purpose: Rejection of unsuitable samples is important for the quality of the laboratory results. In our study, it is aimed to perform sample rejection analysis of blood samples from outpatient, inpatient and emergency units and to evaluate the effectiveness of the training...