Objective To investigate the effect of body positions on serum lipid parameters. Methods By autogenous contrast and cross match survey, blood samples of 100 volunteers were drawn from the same part in both standing and lying positions. 25 of the volunteers had their blood samples collected respectively after standing and sitting for IS min, lying for 15 min and 30 min and then sitting for another 15 min. The blood samples accompanied with quality control materials were analyzed for eight serum lipid parameters on an automatic biochemical analyzer. Results Setting the lying position as baseline, the eight serum lipid parameters detected in sitting position were significantly higher than those in lying position (P0.05). The average increase rate was 11.71% and the highest increase rate was 22.95%. The parameters showed no correlation with gender. In the 25 volunteers, the parameters increased successively from lying, sitting to standing position. While sitting for 15 min after lying, these parameters returned to 95 % of the original parameters in sitting position. Conclusion Changing body position can result in obvious physiological variation of the eight serum lipid parameters.%目的 探讨不同体位对血脂检测指标的影响.方法 100名志愿者,经同体交叉配对设计,抽取坐、卧位同一部位的血液,其中25名分别抽站15min、坐15min、卧15min、30 min、卧后坐15min标本,在全自动生化分析仪上与质控品同时检测8项血脂指标.结果 以卧位为基线与坐位相比,8项血脂检测结果平均升高11.71％,最高升至22.95％,差异均有统计学意义(P＜0.05),且与性别有关.25名志愿者血脂水平从卧位到站位结果逐渐升高,依次为卧位＜坐位＜站位.卧位后坐15min,各指标可恢复到原坐位的95％以上.结论 体位改变能引起血脂检测指标的显著差异.
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