Texas Department of Public Safety, Austin, 78752, USA.
J Anal Toxicol. 2010 Jun;34(5):238-42. doi: 10.1093/jat/34.5.238.
The relationship between normal body temperature, end-expired breath temperature, and blood alcohol concentration (BAC)/breath alcohol concentration (BrAC) ratio was studied in 98 subjects (84 men, 14 women). Subjects consumed alcohol sufficient to produce a BrAC of at least 0.06 g/210 L 45-75 min after drinking. Breath samples were analyzed using an Intoxilyzer 8000 specially equipped to measure breath temperature. Venous blood samples and body temperatures were then taken. The mean body temperature of the men (36.6 degrees C) was lower than the women (37.0 degrees C); however, their mean breath temperatures were virtually identical (men: 34.5 degrees C; women: 34.6 degrees C). The BAC exceeded the BrAC for every subject. BAC/BrAC ratios were calculated from the BAC and BrAC analytical results. There was no difference in the BAC/BrAC ratios for men (1:2379) and women (1:2385). The correlation between BAC and BrAC was high (r = 0.938, p < 0.0001), whereas the correlations between body temperature and end-expired breath temperature, body temperature and BAC/BrAC ratio, and breath temperature and BAC/BrAC ratio were much lower. Neither normal body temperature nor end-expired breath temperature was strongly associated with BAC/BrAC ratio.
本研究旨在探讨 98 名研究对象（84 名男性，14 名女性）的正常体温、呼气末呼吸温度和血液酒精浓度（BAC）/呼气酒精浓度（BrAC）比值之间的关系。研究对象在饮酒后 45-75 分钟内摄入足以产生 BrAC 至少 0.06 g/210 L 的酒精。使用专门用于测量呼吸温度的 Intoxilyzer 8000 分析呼气样本。然后抽取静脉血样和体温。男性的平均体温（36.6 摄氏度）低于女性（37.0 摄氏度）；然而，他们的平均呼气温度几乎相同（男性：34.5 摄氏度；女性：34.6 摄氏度）。每位研究对象的 BAC 均高于 BrAC。从 BAC 和 BrAC 的分析结果计算 BAC/BrAC 比值。男性（1:2379）和女性（1:2385）的 BAC/BrAC 比值无差异。BAC 与 BrAC 之间的相关性很高（r = 0.938，p < 0.0001），而体温与呼气末呼吸温度、体温与 BAC/BrAC 比值、呼气温度与 BAC/BrAC 比值之间的相关性则较低。正常体温和呼气末呼吸温度均与 BAC/BrAC 比值无显著相关性。
