TY - JOUR T1 - Storage Conditions for Blood Samples, for Later Analysis in Criminal Prosecution AU - Erdogan, Serpil AU - Erel, Ozcan AU - Sen, Orhan AU - Avcioglu, Gamze AU - Bal, Ceylan AU - Baran, Pervin PY - 2018 DA - December JF - Journal of Immunology and Clinical Microbiology JO - J Immunol Clin Microbiol PB - Erkan YULA WT - DergiPark SN - 2528-9470 SP - 60 EP - 67 VL - 3 IS - 4 LA - en AB - Backround: Aimof this study was to demonstrate the stability of blood–ethanol concentrationover a storage period. The precise storage time during which ethanol can bereliably measured in frozen blood samples is unknown. Materials and Methods: In study A, samples were thawed and reanalyzed for ethanolcontent; their storage time since the first analysis ranged from one to 295days. The percent difference between the first and second ethanol measurementswas calculated as lost ethanol (%). For study B, the ethanol concentrations of34 samples were measured within 180 days of, and at a randomly selectedinterval from, the working day. Results: Instudy A, the calculated lost ethanol values ranged from 1% to 30%. There was nocorrelation between the calculated ethanol values and the measures on thesecond ethanol analysis day. A significant difference was detected between thetwo analyses in study B (p: 0.01).Conclusions: Itwas concluded that blood samples to be analyzed for ethanol concentration canbe stored at –80°C for many months, with no loss of concentration provided thatanalysis is undertaken as promptly as possible and blood samples are frozen assoon after collection as possible. KW - Ethanol KW - stability KW - forensic medicine CR - 1. Latino-Martel P, Cottet V, Druesne-Pecollo N, Pierre FH, Touillaud M, Touvier M, et al. Alcoholic beverages, obesity, physical activity and other nutritional factors, and cancer risk: A review of the evidence. 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