Lack of observable intoxication in humans with high plasma alcohol concentrations

Judging the degree of human alcohol intoxication is an important clinical, social, and medicolegal matter. Assessing the degree of intoxication is not always easy by direct patient observation. Observational instruments have been used in forensic science, medical, and social situations in an endeavor to measure alcohol intoxication. The validity of these observational instruments must be questioned. In this study, twenty-one patients with alcohol related complaints presenting to major city emergency departments were studied using one such observational instrument, the Alcohol Symptom Checklist (ASC). Three independent emergency medicine physicians applied the criteria of ASC to the twenty-one patients and obtained a plasma alcohol concentration (PAC) for correlation purposes. Individual correlation coefficients (r = 0.182, r = 0.202, r = 0.200) and a composite correlation coefficient (r = 0.235) demonstrated lack of correlation between PAC and ASC. This lack of correlation is supported by clinical observations of experienced emergency department personnel.     

One hundred seventy two deaths involving the use of oxycodone in Palm Beach County

Oxycodone is a potent semi-synthetic narcotic prescribed for the management of pain. Previous investigators have reported that the abuse of oxycodone is most frequently seen in conjunction with the abuse of other drugs, although fatalities have been reported with oxycodone alone. We undertook a retrospective review of cases investigated by the Palm Beach County Medical Examiner's Office in which postmortem toxicologic studies indicated the presence of oxycodone. A total of 172 consecutive cases were studied, including 18 in which death was attributed to oxycodone toxicity, 117 to combined drug toxicity, 23 to trauma, 9 to natural causes and 5 to another drug or drugs. The postmortem blood concentrations of oxycodone overlapped among the groups. The mean blood oxycodone concentration among the cases of oxycodone toxicity was 0.69 mg/L, combined drug toxicity 0.72 mg/L and trauma 0.62 mg/L. Concentrations were lower in cases of deaths attributed to natural causes and to another drug or drugs (mean each 0.087 mg/L). Benzodiazepines, detected in 96 cases, were the most common co-intoxicants in the cases of combined drug toxicity, followed by cocaine, which was found in 41. The most frequently encountered benzodiazepine was alprazolam. This study confirms that deaths in which oxycodone is a factor are most commonly cases of combined drug toxicity. The high incidence of alprazolam as a co-intoxicant has not been previously recognized.     

E-Mail Communication and Group Cooperation in Mixed Motive Contexts

Two empirical studies are presented that explore how and why e-mail communication (versus face-to-face communication) influences cooperation in mixed motive group contexts. Results indicate that, relative to those engaging in face-to-face interaction, those who interacted via e-mail were (1) less cooperative and (2) felt more justified in being noncooperative. Feelings of justification mediated the relationship between communication media and the decision to cooperate or not.