Norman R W
J R Soc Med. 1996 Oct;89(10):561-2. doi: 10.1177/014107689608901006.
Twenty-four-hour urine collections are an important part of the metabolic evaluation of stone-formers, but are difficult for patients at work. At weekends the results might be different. Forty-five stone-formers who worked at day jobs from Monday to Friday collected urine for 24 h on a normal working day and also on a Saturday or Sunday and the differences were evaluated. Average 24 h urine volume was higher on weekdays than at weekends. Calcium, oxalate, and uric acid excretion did not differ. These results imply an increased risk of crystalluria at the weekend. Therefore weekend collections are most likely to show abnormalities and should be acceptable to clinicians.
24小时尿液收集是结石患者代谢评估的重要组成部分，但对于在职患者来说却很困难。在周末，结果可能会有所不同。45名周一至周五从事日间工作的结石患者在正常工作日以及周六或周日收集24小时尿液，并对差异进行评估。工作日的平均24小时尿量高于周末。钙、草酸盐和尿酸排泄量没有差异。这些结果表明周末结晶尿风险增加。因此，周末收集的尿液最有可能显示异常，临床医生应该能够接受。
