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Introduction: The clinical laboratory testing process has three phases, and one of the most common errors that adversely affect the accuracy of laboratory test results occurs in the pre-analytical phase. Different brands of blood collection tubes used in laboratories can adversely affect the accuracy of the parameters. This study aims to compare the clot activator gel biochemistry tubes for selected clinical parameters. Methods: Fifty healthy volunteers aged between 18-70 years were included who didn't have any chronic or inflammatory disease, any clinical or pathological disease, and didn't use any medication. The biochemical parameters such as serum albumin, creatinine (crea), urea, triglyceride (TG), calcium (Ca), sodium (Na), potassium (K), and chloride (Cl) levels; aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH) activity were measured by an autoanalyzer. Student's t-test and Bland-Altman plot methods were used for statistical data analysis by SPSS software. Results: There was no statistical difference between the two different tube brands in terms of all evaluated clinical parameters that could affect the accuracy of the test results. Discussion and Conclusion: When the BD® brand tube is taken as a reference, it is thought that AYSET® tubes give the same or close values, and the clinical use of AYSET® brand tubes will not cause an error in laboratory tests. [ABSTRACT FROM AUTHOR]

Objective: KL21®; It is a food supplement using remember regeneration therapy method (RTM). KL21®. Whereas products that containing combined medicinal plants are expected to be beneficial for health, on the other hand, their toxic properties are able to potentially increase due to the interactions of the active ingredients in the plants. With this study, it was aimed to investigate the toxic effect of KL21®. Material-Method: In the study conducted with control (n: 8), acute (n: 8), subacute (n: 8) and post-subacute (n: 8) groups; the daily dose of the product was tested by gavage in 8-week-old female Wistar rats. Biochemical parameters P, Ca, ALB, TG, TP, TC, Creatinine, Bilirubin, GGT, ALP, AST and ALT were analyzed. In hematological parameters; WBC, RBC, PLT, HCT, HGB were examined. Liver, lung, spleen, kidney and heart tissues were investigated histopathologicaly. Clinical observation was made throughout the entire process. Results: When the acute, subacute and post-subacute groups were compared to control, it was observed that there was no significant difference in biochemical, hematological, histopathological terms. No toxicity-related side effects were found in clinical observations. Conclusion: The potential toxic effect of daily use dose of KL21® containing the combined medicinal plant was investigated in vivo. According to the hemogram, biochemistry and pathology tests, it was determined that it does not show acute and subacute toxicity. [ABSTRACT FROM AUTHOR]