Osmol gap method for the detection of diethylene glycol in human serum
Osmol gap method for the detection of diethylene glycol in human serum作者机构：Department of Emergency Medicine SUNY Upstate Medical University/Upstate New York Poison Center Syracuse New York/Department of Occupational Medicine Glens Fal Hospital Glens Fall＇ New York U S. Department of Pathology and Laboratory Medicine Albany Medical Center Hospital and College Albany New York US
出 版 物：《World Journal of Emergency Medicine》 (世界急诊医学杂志（英文）)
年 卷 期：2010年第1卷第2期
页 面：104-107页
学科分类：0401[教育学-教育学] 04[教育学] 1002[医学-临床医学] 040110[教育学-教育技术学（可授教育学、理学学位）]
主 题：Diethylene glycol Osmol gap Metabolic acidosis
摘 要：BACKGROUND： Measurement of the osmol gap （OG） is a technique that is used frequently in toxic alcohol poisonings （ethylene glycol （EG） and methanol） as a rapid means to estimate exposure, and can be performed in virtually all hospital laboratories. The value of the OG has not been previously evaluated for diethylene glycol （DEG） exposures. The primary objective of this study was to evaluate the utility of the OG in estimating DEG serum concentrations using the most common formula that is currently used for estimating methanol, ethanol, and ethylene glycol ***： This was a controlled laboratory investigation using serum samples individually spiked with a known quantity of toxic alcohol compared to no toxic alcohol. Test samples were spiked with ethanol, DEG, EG, and methanol. Serum chemistries and osmolality and osmolarity were determined, and the OG was determined for each ***： The percent error of estimating DEG concentrations of 26.3% was similar to the mean percent error for estimating other alcohol concentrations, 30.5%±5.6% （P〉0.05, 95% confidence interval 16.7%-44.3%）.CONCLUSION： The severity of metabolic effects associated with DEG and the need to appropriately determine rescue treatments mandate early detection of significant exposures for effective triage and patient management. Our results indicate that the percent error of the osmol gap method for estimating DEG concentration is similar to that of other toxic alcohols; this simple technique could be a valuable clinical tool, since quantitative DEG analysis is rarely available.
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