红细胞计数高是指由骨髓产生、存在于血液中的一类细胞增多。红细胞主要负责将氧气从肺部转移到身体其他部位。限制氧气的健康状况可能会导致红细胞计数升高。其他状况可能会导致身体产生的红细胞供大于求。
不同实验室对红细胞计数高的定义存在差异。
对于成人，通常的范围往往是：
- 男性每微升（mcL）血液中 435 万至 565 万个红细胞。
- 女性每 mcL 血液中 392 万至 513 万个红细胞。
对于儿童，通常的范围取决于年龄和性别。
低氧水平、误用某些医疗治疗和血癌可能会导致红细胞计数高。
大多数情况下，医疗护理专业人员在进行其他检查时发现红细胞计数高。检查可能是为了找出症状的原因或检查某些疾病的变化。询问医疗护理专业人员检查结果意味着什么。
显示参考文献
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Original article: https://www.mayoclinic.org/zh-hans/symptoms/high-red-blood-cell-count/basics/causes/sym-20050858