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生化诊断肿瘤的原则用生化方法诊断肿瘤必须注意下列几点:(一)样品的收集。(二)生化测定方法对诊断肿瘤是否有效。(三)能否反映出肿瘤病情的变化。兹叙述如下:一、样品的收集;在生化测定中,样品不外乎收集尿样或采血。一般若此测定方法必须用24小时尿样的,则必须考虑改进。因24小时尿,即使在住院病人中亦不易收集,同时容易腐败不易保存。在门诊病人中则更为困难。最好能改进为采用晨空腹尿。一般认为采血要比收尿好,因为血样能立即从患者获得,不太会弄错,同时能避免污染。但采血量不能太多,最好是用微量测定的方法。
The principle of biochemical diagnosis of tumors The following points must be noted for biochemical diagnosis of tumors: (a) Sample collection. (b) Biochemical assays are useful for diagnosing tumors. (c) Can it reflect the changes in the condition of cancer? It is described as follows: 1. Sample collection; In biochemical assays, the sample is nothing more than collecting urine or collecting blood. Generally if this measurement method must use 24-hour urine samples, improvement must be considered. Due to 24 hours of urine, it is not easy to collect even in hospitalized patients, and it is not easy to save corruption. It is even more difficult in outpatients. It is best to improve to use morning empty urine. It is generally believed that blood collection is better than collecting urine, because blood samples can be obtained immediately from patients and are less likely to be mistaken and avoid contamination at the same time. But the amount of blood can not be too much, it is best to use micro-measurement method.