Barbiturateshairql
该测试通过分析头发样本检测巴比妥类药物的存在，用于评估长期药物使用情况。
{巴比妥类药物是一类用于镇静、催眠和抗惊厥的处方药,头发检测可反映过去数周至数月的药物使用历史,常用于药物监测、法医鉴定或职业健康检查,检测结果阳性可能提示药物使用或暴露,需结合临床情况和其他检查结果综合判断}
Key facts at a glance
- LOINC
- 40413-7
- Short code
- BARBHAIR
- Synonyms
- Barbiturates Hair Ql
- Category
- chemistry
- Sample
- serum
- Container
- Hair specimen collection kit (aluminum foil wrap or designated hair collection envelope)
- Units
- N/A
- Ref low
- 0
- Ref high
- 200
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 2–99 years
- Method
- Immunoassay with confirmation by Gas Chromatography-Mass Spectrometry (GC-MS) or Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
- CPT
- 80101
- SNOMED
- 395085009
- Specimen volume
- 100-200 strands of hair (approximately 100 mg); proximal 3 cm segment preferred for most recent exposure history
- Stability
- Stable at room temperature (15-25°C) for up to 2 weeks; refrigerated (2-8°C) for up to 4 weeks; frozen (-20°C) for long-term storage up to 6 months
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 72–168 hours
- Order
- routine
这是什么测试？
头发巴比妥类药物检测是一种实验室检查，用于检测头发样本中是否存在巴比妥类药物。巴比妥类药物是一类中枢神经系统抑制剂，包括苯巴比妥、戊巴比妥、速可眠等，常用于治疗失眠、焦虑、癫痫发作等。由于头发会随着生长累积药物及其代谢产物，因此这种检测可以反映过去数周甚至数月的药物使用情况。
为什么需要这项检测？
医生可能要求进行这项检测的原因包括：监测长期用药依从性（如癫痫患者需持续服用苯巴比妥）；评估是否存在药物滥用或非处方使用；法医鉴定中协助调查可疑药物相关事件；职业健康检查中评估是否存在药物暴露风险。与血液或尿液检测相比，头发检测的优势在于检测窗口期更长，可提供更长期的药物使用历史信息。
如何进行检测？
检测过程简单无创。通常从患者头部剪取一小束头发（约100-200根），优先选择靠近发根的头发样本，因为发根部分能提供更准确的近期药物暴露信息。样本会送往实验室进行分析，通过特殊技术检测头发中是否含有巴比妥类药物及其代谢产物。整个过程快速简便，不会造成不适。
结果解读
检测结果通常分为阳性（检测到药物）或阴性（未检测到药物）。阳性结果表示在检测对应的时间范围内存在巴比妥类药物使用或暴露。但需要注意：结果阳性不一定意味着存在药物滥用，因为某些药物（如部分抗癫痫药）可能是合法处方；结果阴性也不能完全排除药物使用，可能因使用时间过长超出检测窗口或使用剂量过低无法检测。最终解释需由专业医生结合具体情况进行判断。
Reference range
Negative (cutoff: 200 pg/mg for screening; confirmation varies by specific barbiturate analyte)N/A
No special patient preparation required. Patient should not chemically treat, dye, bleach, or perm hair prior to collection, as this may affect analyte detection. Wash hair with regular shampoo only.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings2
Frequently asked questions
头发检测能检测多长时间的药物使用？
检测结果阳性是否意味着我正在滥用药物？
头发染发或烫发会影响检测结果吗？
检测前需要空腹吗？
儿童可以接受这项检测吗？
Sources
- 1
- 2
- 3LabCorp - Hair Drug TestSource
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy