白细胞计数是临床上最常用和极其有价值的辅助检查。目前许多医疗单位采用静脉血代替过去耳垂采血测定白细胞值,认为此法所测数据稳定,不易受各种外界因素干扰,但评定标准仍按以往的正常值范围。我们采用自身对照方法,同时采肿瘤患者耳血和静脉血进行白细胞计数值测定,发现两者间有明显著差异,报告如下 White blood cell count is the most commonly used and extremely valuable auxiliary examination in clinical practice. At present, many medical units use venous blood instead of past earlobe blood collection to determine the value of white blood cells. It is believed that the data measured by this method is stable and is not easily affected by various external factors. However, the assessment standards are still in the range of normal values. We used our own control method to collect white blood cell counts from patients with ear cancer and venous blood. We found a significant difference between the two. The report is as follows: