Legal professionals and others have suggested that vaping electronic cigarettes (e-cigs) prior to or during ethanol breath testing may produce false positives. Preliminary Breath Tests (PBTs) and Evidentiary Breath Tests (EBTs) measure ethanol in exhaled breath, and Standardized Field Sobriety Tests (SFSTs) are used to assess impairment. Ethanol has been identified in e-cig liquids (e-liquids). Presented are a series of experiments designed to determine the mechanics of vaping ethanol using an e-cig, and the effects of vaping ethanol on the SFSTs and breath tests used by law enforcement officers (LEO). Twelve participants (5 females, age: 21-32 and 7 males, age: 21-55), vaped either one or ten puffs of an e-liquid (0% or 20% ethanol). LEOs assessed impairment using SFSTs (12 and 42 min), PBTs (<1, 27, 32, 37, and 57 min), and EBTs (2, 29, 34, 39 and 59 min) post vaping. A self-assessment test was administered post vaping (22 and 52 min). Baseline responses for all measures were collected prior to vaping. Results demonstrated that ethanol in the e-liquids was aerosolized by e-cigs, and produced particles that could reach the deep lung tissue based on mean-mass diameter. Ethanol was detected by PBT <3 minutes after participants vaped one (0.007-0.030 g/210L) or 10 puffs (013-0.074 g/210 L) of a 20% ethanol e-liquid. Ethanol was not detected by PBT at any subsequent timepoint. Ethanol was not detected by the EBT under any condition. Impairment was not indicated by the SFST. Some subjective effects were reported, but few statistically significant differences between conditions were indicated. A wait period prior to ethanol breath testing is not always mandated, depending on jurisdiction, or observed in all applications, such as workplace testing. The results demonstrate that a wait period must be employed to prevent vaping-related false positive breath ethanol results.

中文翻译：

---

吸食含乙醇电子烟油对路边损害调查的影响

法律专业人士和其他人建议，在乙醇呼气测试之前或期间吸电子烟可能会产生误报。初步呼气测试 (PBT) 和证据呼气测试 (EBT) 测量呼出气中的乙醇，标准化现场清醒测试 (SFST) 用于评估损伤。电子烟液体（电子液体）中已鉴定出乙醇。展示了一系列实验，旨在确定使用电子烟吸乙醇的原理，以及吸乙醇对执法人员 (LEO) 使用的 SFST 和呼气测试的影响。12 名参与者（5 名女性，年龄：21-32 岁，7 名男性，年龄：21-55 岁）吸了一口或十口电子烟液（0% 或 20% 乙醇）。LEO 使用电子烟后 SFST（12 和 42 分钟）、PBT（<1、27、32、37 和 57 分钟）和 EBT（2、29、34、39 和 59 分钟）来评估损伤。吸电子烟后（22 分钟和 52 分钟）进行自我评估测试。在吸电子烟之前收集所有措施的基线反应。结果表明，电子烟中的乙醇被电子烟雾化，并产生根据平均质量直径可以到达深层肺组织的颗粒。参与者吸完 1 口（0.007-0.030 g/210L）或 10 口（013-0.074 g/210 L）20%乙醇电子液体后不到 3 分钟，通过 PBT 检测到乙醇。PBT 在随后的任何时间点均未检测到乙醇。在任何条件下 EBT 均未检测到乙醇。SFST 并未表明存在减值。报告了一些主观影响，但表明条件之间几乎没有统计学上的显着差异。根据司法管辖区的不同，乙醇呼气测试之前的等待期并不总是强制规定的，或者在所有应用（例如工作场所测试）中都必须遵守。结果表明，必须等待一段时间才能防止与电子烟相关的呼吸乙醇假阳性结果。