piecemeal可以这么理解吗？

         For decades, autoanalyzers have provided clinicians with a panel of basic serum chemistry results, including sodium, potassium, chloride, total CO2, glucose, blood urea nitrogen and creatinine. Although urine chemistries can also be determined with an autoanalyzer, urine tests are typically ordered piecemeal. This inexplicable practice seriously hampers our ability to thoroughly evaluate a variety of disturbances. 

        Urine chemistries are extremely valuable in the evaluation and management of patients with fluid and electrolyte or acid– base disturbances [1]. To avoid missing needed data, these should routinely include sodium, potassium, chloride, glucose, urea nitrogen and creatinine. It is most efficient to obtain all of these tests in a standardized basic urine metabolic panel obtained concurrently with the serum chemistry panel, with both panels measured by autoanalyzer.

几十年来，自动分析仪为临床医生提供了一组基本的血清生物化学结果，包括钠、钾、氯、总二氧化碳、葡萄糖、血尿素氮和肌酐。虽然尿液生物化学成分也可以通过自动分析仪进行测定，但尿液测试通常并不全面。这种令人费解的操作严重妨碍了我们全面评估各种紊乱的能力。

尿液生物化学检查在评估和管理患者的体液、电解质或酸碱紊乱方面非常有价值。为了避免遗漏必要的数据（这些数据通常应包括钠、钾、氯、葡萄糖、尿素氮和肌酐），最有效的方法是在一个标准化的基本尿液代谢组套检查的同时行血清生化检查，这两个组套检查均由自动分析仪测量。