Carnitinebiosynthesispanelcsf
关键信息一览
- LOINC
- 79286-1
- 简码
- CARNCSF
- 别名
- Carnitine biosynthesis Panel CSF
- 类别
- 生化
- 样本
- csf
- 采血管
- Sterile CSF collection tubes, polypropylene, free of preservatives; tube #2 or #3 typically preferred to minimize blood contamination. Transport aliquot in cryovial at -20°C or below if not analyzed immediately.
- 单位
- N/A
- 是否空腹
- 否
- 适用人群
- 成人
- 性别
- all
- 年龄范围
- 0–99 岁
- 检测方法
- Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
- CPT
- 82017 (Carnitine panel components typically billed individually; may include 82542 for chromatography)
- SNOMED
- 398681008
- 标本量
- 1-2 mL of cerebrospinal fluid
- 标本稳定性
- Stable for 24 hours at 2-8°C; for extended storage, freeze at -20°C or below. Avoid repeated freeze-thaw cycles. Stable for up to 3 months at -80°C.
- 溶血上限
- 200
- 报告时间
- 72–336 小时
- 医嘱频率
- routine
Reference range
Reference ranges vary by individual analyte within the carnitine biosynthesis intermediate panel; consult individual component reference ranges. CSF carnitine intermediates are typically reported in nmol/L or μmol/L. General interpretive guidelines: Free carnitine, total carnitine, and individual acylcarnitine species (including trimethyllysine, γ-butyrobetaine, and deoxycarnitine) are evaluated against age-matched reference data.N/A
No special patient preparation required. Lumbar puncture should be performed using sterile technique. Inform the ordering provider of any medications, particularly carnitine supplementation, valproic acid, or other anticonvulsants, as these may influence results.
本信息仅供教育用途，不能替代专业医疗建议、诊断或治疗。
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医学审核:WellAlly 编辑团队 最后审核 2026年8月16日. · 阅读我们的编辑政策