The Order of Draw during Blood Collection: A Systematic Literature Review

Blood collection is one of the most common nursing procedures and is not devoid of complications. The order of draw during blood collection is a controversial theme. We aimed to define the efficacy of the order of draw during blood collection to guarantee an exact biochemical result. We carried out a systematic literature review on PubMed, Scopus, Web of Science, CINAHL, Embase, Joanna Briggs Institute, Cochrane Library, and Google Scholar. Articles written in English and published from 2000 to 2020 were considered suitable. The analysis of the 11 articles included highlighted different opinions; however, the most recent evidence declares that the cross-contamination caused by the incorrect order of draw is a trait only in the open system of drawing. The most recent evidence affirms the negligible effect of the order of draw during blood collection when using the closed blood collection system, while it is recommended when using the open collection system.

Some biolochemical and histopathological effects of different oral doses Ochratoxin A in male rats

The present study was carried out to investigate the effects of Ochratoxin A (OTA) on the serum activity of AST, ALT and ALP, Glutathione (GSH) and liver, kidney and spleen histopathology .Twenty male rats divided equally into three treated groups dosed orally and daily with OTA doses (70, 140 and 210 μg/kg) for 20 day representing T1, T2 and T3 groups and the fourth group dosed daily with distilled water considered as control one. Biochemical result showed elevation in AST and ALT activity and decrease in ALP enzyme activity and GSH serum concentration of treated serum groups at 10 and 20 days of exposure to ochratoxin A these changes positively were proportional with increase OTA doses (dose dependent). Histopathological changes were noticed in liver, kidney and spleen of all treated groups including (necrosis, congestion, and infiltration of inflammatory cells and vacuolation of cytoplasm). The severities of these lesions are in dose dependent manner.