天哪,血糖结果竟然为0

2019-03-28 梁珊珊,李贵星 华西检验医学中心

老年男性,因“咳嗽、咯痰4+年,加重伴呼吸困难、心累气紧1+月”入院。

病史特点

老年男性,因“咳嗽、咯痰4+年,加重伴呼吸困难、心累气紧1+月”入院。

上述症状反复发作,于院外诊断为 :1、左下肺恶性肿瘤伴胸膜转移。2、左侧恶性胸腔积液。3、慢性阻塞性肺疾病。4、高血压病。治疗上予以持续氧气吸入、止咳化痰、胸腔穿刺术等相关治疗后,患者症状有所缓解,但活动后仍觉心累气紧,患者为进一步诊治,入我院。

自患病来,患者神清,精神一般,饮食可,眠差,二便正常,体重未见明显变化。患者高血压病史8+年(近日暂未予以降压药,血压监测尚可)。

否认糖尿病、肝炎、结核或其他传染病史,否认过敏史。吸烟35+年,每日20支。

入院后于2018.1.30空腹采血做生化检查:

该患者血糖结果为0.00mmol/L。

问题分析

1、实验室检测中遇到低血糖患者应如何处理?

第一步:检查标本是否合格

经检查标本采集合格,复查后仍为该结果。

第二步:核实送检时间

通过实验室信息系统(LIS)查询该患者信息,发现该患者样品采集时间为2018-1-30早上06:07,收样分析时间为2018-1-30早上09:41,间隔时间为3小时37分,排除标本放置过久或过夜采集的样本。同时发现该患者当天同时采集了血常规和心肌标志物检查,用这二管标本分析血糖结果仍为0.00mmol/L,确认分析结果无误。检验医学网

第三步:联系临床

经电话联系病房,该患者生命体征正常。建议临床旁血糖分析,5分钟后病房回电床旁血糖分析结果4.57mmol/L,与实验室不符合。

第四部:进一步分析病情,查找原因

2、联系临床后,患者床旁检测血糖水平为4.57mmol/L,同时临床介绍该患者存在类白血病反应,进一步如何处理?

第一步:查找原因

患者诊断为“肺部恶性肿瘤、COPD、高血压”,无特殊降糖药物用药史,且并未发生低血糖相关症状。实验室结果和患者病情不符,我们再次通过医院信息系统(HIS)和LIS查阅患者资料,发现同日该患者血液常规检查结果如下:

该患者白细胞计数结果为101.1*10^9/L,高过参考值上限10倍而且形态正常,无原始幼稚细胞,排除白血病可能,高度怀疑患者为类白血病反应。我们讨论认为该患者血糖降低的原因可能是标本体外放置时,白细胞对糖分解引起。

第二步:验证病因

为证实该患者为类白细胞反应导致的假性低血糖,再次和病房联系,立即采集二管血样本送生化室,一管为红头无添加剂管,另一管为肝素锂抗凝管,实验室收样后立即离心进行血糖检测,并将红头管血清吸出放入空白红头管中加盖放置于室温中,肝素锂抗凝管再次将血浆和细胞混匀加盖放置于室温中,每隔1小时离心分析血糖,同时分析分离血清管血糖水平,不同放置时间分离血清管和未分离全血管血糖(mmol/L)比较结果如下:

实验结果表明:分离血清样本,将血清和细胞分开,样本血糖结果稳定。而未分血浆的样本管,随着样本放置时间的延长,血糖结果迅速降低,标本放置3小时,血糖结果降为0。上午分析的样本已放置3小时37分钟,因此结果为0不奇怪。

通过不同放置时间分离血清管和未分离全血管血糖结果的比较实验,证实该患者血糖降低为类白血病反应导致高白细胞水平,极高数量的成熟白细胞对糖的分解作用导致出现假性的低血糖结果。

再次和病房沟通联系,告之临床医生该患者存在类白血病反应,以后该患者查血糖建议用床旁分析或采血后立即送实验室按急诊马上离心分析,避免出现假性结果对患者的诊治产生错误的指导。

3、实验室检测到血糖值偏低常见于:

(1)采集错误,患者输注非糖液体,同时输液侧采集,引起血糖浓度假性降低;

(2)采集后未及时送检,放置时间过久,红细胞降解葡萄糖,引起血糖偏低;

(3)患者送检标本前使用了降糖药物;

(4)患者有特殊疾病如胰岛素瘤等易引发低血糖的病因;

(5)其他疾病如本例中的类白细胞反应,除此之外若患者有红细胞增多症及菌血症,血液中增多的红细胞及细菌等病原体也会消耗葡萄糖,引起血糖浓度降低;检验医学网

(6)对于红头管采集的生化检测标本,若血清有凝块会导致仪器测定结果有误。此外,实验室本身的检测质量是保证结果准确的首要因素。

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    2019-06-05 一天没事干

    很好的学习机会

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  2. [GetPortalCommentsPageByObjectIdResponse(id=367309, encodeId=a16236e3099b, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Wed Jun 05 09:50:11 CST 2019, time=2019-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365066, encodeId=9a6036506635, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Mon Apr 22 08:28:47 CST 2019, time=2019-04-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363949, encodeId=d72f3639492b, content=积极寻找异常现象背后的原因,不放过任何疑问,为病人和临床提供准确的检查结果,, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=92c82567105, createdName=12575f20m95暂无昵称, createdTime=Mon Apr 01 15:59:52 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363903, encodeId=1e6436390374, content=涨见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ad152126235, createdName=1361fbc194m, createdTime=Mon Apr 01 07:43:17 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363854, encodeId=8ca536385494, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Sun Mar 31 10:17:20 CST 2019, time=2019-03-31, status=1, ipAttribution=)]
    2019-04-22 一天没事干

    很好的学习机会

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  3. [GetPortalCommentsPageByObjectIdResponse(id=367309, encodeId=a16236e3099b, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Wed Jun 05 09:50:11 CST 2019, time=2019-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365066, encodeId=9a6036506635, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Mon Apr 22 08:28:47 CST 2019, time=2019-04-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363949, encodeId=d72f3639492b, content=积极寻找异常现象背后的原因,不放过任何疑问,为病人和临床提供准确的检查结果,, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=92c82567105, createdName=12575f20m95暂无昵称, createdTime=Mon Apr 01 15:59:52 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363903, encodeId=1e6436390374, content=涨见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ad152126235, createdName=1361fbc194m, createdTime=Mon Apr 01 07:43:17 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363854, encodeId=8ca536385494, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Sun Mar 31 10:17:20 CST 2019, time=2019-03-31, status=1, ipAttribution=)]
    2019-04-01 12575f20m95暂无昵称

    积极寻找异常现象背后的原因,不放过任何疑问,为病人和临床提供准确的检查结果,

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=367309, encodeId=a16236e3099b, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Wed Jun 05 09:50:11 CST 2019, time=2019-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365066, encodeId=9a6036506635, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Mon Apr 22 08:28:47 CST 2019, time=2019-04-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363949, encodeId=d72f3639492b, content=积极寻找异常现象背后的原因,不放过任何疑问,为病人和临床提供准确的检查结果,, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=92c82567105, createdName=12575f20m95暂无昵称, createdTime=Mon Apr 01 15:59:52 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363903, encodeId=1e6436390374, content=涨见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ad152126235, createdName=1361fbc194m, createdTime=Mon Apr 01 07:43:17 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363854, encodeId=8ca536385494, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Sun Mar 31 10:17:20 CST 2019, time=2019-03-31, status=1, ipAttribution=)]
    2019-04-01 1361fbc194m

    涨见识了

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=367309, encodeId=a16236e3099b, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Wed Jun 05 09:50:11 CST 2019, time=2019-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365066, encodeId=9a6036506635, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Mon Apr 22 08:28:47 CST 2019, time=2019-04-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363949, encodeId=d72f3639492b, content=积极寻找异常现象背后的原因,不放过任何疑问,为病人和临床提供准确的检查结果,, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=92c82567105, createdName=12575f20m95暂无昵称, createdTime=Mon Apr 01 15:59:52 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363903, encodeId=1e6436390374, content=涨见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ad152126235, createdName=1361fbc194m, createdTime=Mon Apr 01 07:43:17 CST 2019, time=2019-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363854, encodeId=8ca536385494, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Sun Mar 31 10:17:20 CST 2019, time=2019-03-31, status=1, ipAttribution=)]
    2019-03-31 一天没事干

    很好的学习机会

    0

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2019年1月,以色列和意大利学者发表在《Cardiovasc Diabetol》的一项回顾性研究表明,心脏重症监护室(CICU)中,良好血糖控制可改善糖尿病患者结局。

Diabetic Med:控制HbA1c,低碳水化合物饮食是否有效?

目前,人们对碳水化合物在控制体重和血糖方面的作用非常感兴趣。然而,美国和欧洲的糖尿病指南并未对碳水化合物的摄入量给出具体的建议,而是强调监测总的碳水化合物是实现血糖控制目标的关键战略。