Abstract

BackgroundMany acute poisoned patients have co-ingested alcohol in the emergency department (ED). This study aimed to estimate the blood alcohol concentration (BAC) of acute poisoned patients who visited an ED by age and gender distribution and to determine whether it is possible to obtain self-reports of alcohol ingestion among poisoned patients.MethodA retrospective medical chart review was conducted for all patients who visited the ED with acute poisoning between January 2004 and February 2008. Data regarding the patient’s age, gender, BAC, self-reported alcohol ingestion, poison ingested, time elapsed since poison exposure, presence of suicide attempts, and self-reported alcohol ingestion were collected. Patients were classified into two groups based on serum alcohol levels (≤10 mg/dl, >10 mg/dl).ResultsOf the 255 subjects, 88 subjects (34.5%) were included in the non-alcohol group and 167 subjects (65.5%) were included in the alcohol group. 227 subjects (89.0%) showed suicide intention. Using the 201 subjects who completed the self-report of alcohol ingestion, self-report resulted in 96.6% sensitivity and 86.7% specificity for the assessment of alcohol ingestion. The positive and negative predictive values for self-report were 91.2% and 94.7%, respectively. The median (interquartile range) BAC of the 97 males in the sample was 85.0 (10.0-173.5) mg/dl, and that of the 158 females was 32.0 (4.0-137.5) mg/dl (p = 0.010). The distribution of age in the groups was significantly different between the alcohol and non-alcohol groups (p = 0.035), and there was a significant difference in the mean BAC with respect to age for males (p = 0.003).ConclusionThis study showed that over two-thirds of patients presenting with acute poisoning had a BAC > 10 mg/dl. Most of patients visited by suicide attempt. Males had a higher BAC than did females. Self-reported alcohol ingestion in acute poisoned patients showed high sensitivity and specificity.

Highlights

  • IntroductionThis study aimed to estimate the blood alcohol concentration (BAC) of acute poisoned patients who visited an emergency department (ED) by age and gender distribution and to determine whether it is possible to obtain self-reports of alcohol ingestion among poisoned patients

  • Many acute poisoned patients have co-ingested alcohol in the emergency department (ED)

  • Using the 201 subjects who completed the self-report of alcohol ingestion, self-report resulted in 96.6% sensitivity and 86.7% specificity for the assessment of alcohol ingestion

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Summary

Introduction

This study aimed to estimate the blood alcohol concentration (BAC) of acute poisoned patients who visited an ED by age and gender distribution and to determine whether it is possible to obtain self-reports of alcohol ingestion among poisoned patients. It is important to evaluate alcohol ingestion among patients with acute poisoning. The blood alcohol concentration (BAC) test is valuable in assessing alcohol ingestion when evaluating the consciousness of acutely poisoned patients. The BAC test and breath-alcohol test are difficult to use on poisoned patients due to the need for additional blood sampling and the patient’s lack of cooperation due to age or decreased mentation after poisoning. We aimed to estimate the BAC of acutely poisoned patients who visited an ED by age and gender distribution and to evaluate the accuracy of self-reported alcohol ingestion

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