某些化验无疑可以免做,但弄不清占多少。必须和不是必须的有时也难分清。下列几点用来估计短钱时少做一些化验能省多少钱。化验费分固定的和变动的两部分,后者直接受标本的多少而定,一般占临床总的化验费的10-12%左右。Wiukelman氏等推算若减少10-50%的化验,节约3.9-21.5%的开支,说明省钱和省做的工作之间不成正比。加做的化验标本常三三两两相重复,重复程度若暂作2.5,则少做40%的工作复盖(标本的)面就达 Some tests are undoubtedly free, but they don’t know how much. It is necessary and sometimes not necessary to distinguish. The following points are used to estimate how much money can be saved by doing less laboratory tests for short money. The test fee is divided into fixed and variable two parts. The latter is directly determined by the number of specimens, which generally accounts for about 10-12% of the total clinical test fee. Wiukelman et al. calculated that if we reduce 10-50% of the tests, we can save 3.9-21.5% of the expenditure, which means that there is no direct comparison between saving money and doing provincial work. Addition of laboratory test specimens is often repeated in threes and twos. If the degree of repetition is 2.5, then 40% of the work is covered (samples) to reach the limit.