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关键信息一览
- LOINC
- 107033-3
- 简码
- CD3CD7
- 别名
- CD3+CD7+ Cells NFr Spec FC
- 类别
- 生化
- 样本
- serum
- 采血管
- Heparinized tube (sodium or lithium heparin, green-top) preferred for flow cytometry; EDTA (lavender-top) tube may be acceptable; ACD (yellow-top) tube is an alternative for immunophenotyping. For serum specimens, use serum separator tube (SST, tiger-top or red-top with clot activator).
- 单位
- N/A
- 参考下限
- 60
- 参考上限
- 85
- 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
- flow-cytometry
- CPT
- 86359 (T cells, total count); 86360 (T cells, absolute CD4 and/or CD8 count with ratio); additional CPT codes may apply for comprehensive immunophenotyping panels (e.g., 86355, 86357, 86361, 86367)
- SNOMED
- 439127006 (CD3+CD7+ T lymphocyte); 271442001 (Flow cytometry procedure)
- 标本量
- Peripheral blood: 3-5 mL whole blood in anticoagulant tube; bone marrow: 1-3 mL; tissue/fluid specimens: as available. Minimum volume requirements vary by laboratory protocol.
- 标本稳定性
- Specimen should be processed within 24-48 hours of collection for optimal viability. Store at room temperature (18-25°C); do not refrigerate or freeze whole blood specimens as this may affect cell viability and marker expression. Actual stability depends on specimen type and laboratory-specific protocol.
- 溶血上限
- 500
- 脂血上限
- 1000
- 黄疸上限
- 500
- 报告时间
- 4–72 小时
- 医嘱频率
- routine
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Reference range
Reference ranges vary by laboratory and specimen type. CD3+CD7+ T-cell populations are typically evaluated as part of lymphocyte subset immunophenotyping. Generally, CD3+ T cells comprise 60-85% of total lymphocytes in peripheral blood, with the majority co-expressing CD7. Normal ranges should be established by each performing laboratory based on its instrument, reagents, and local population.N/A
No special patient preparation required. Fasting is not necessary. Patients should be well-hydrated. Recent transfusions, immunosuppressive therapy, chemotherapy, or hematopoietic stem cell transplantation may significantly affect results and should be documented.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
简称
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常见问题
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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