Frey F J, Frey B M, Koegel R, Hodler J, Wegmueller E
Lancet. 1979 Feb 17;1(8112):343-5. doi: 10.1016/s0140-6736(79)92888-5.
In 14 patients with fixed and reproducible postural proteinuria and 14 patients with histologically proven glomerulonephritis, the selectivity of proteinuria was measured separately in the day and night urine collections. The selectivity of proteinuria in the urine collected in recumbency was lower in patients with glomerulonephritis than in patients with postural proteinuria. All patients with postural proteinuria showed an increment of the selectivity from day to night of at least 13 degrees, whereas the maximum increment in patients with glomerulonephritis was 5 degrees. The changes in selectivity from day to night in patients with postural proteinuria and patients with glomerulonephritis were significantly different and seem to be a useful discriminatory test.
在14例有固定且可重复出现的体位性蛋白尿患者和14例经组织学证实的肾小球肾炎患者中，分别在白天和夜间收集尿液来测定蛋白尿的选择性。肾小球肾炎患者卧位时收集尿液的蛋白尿选择性低于体位性蛋白尿患者。所有体位性蛋白尿患者从白天到夜间的选择性增量至少为13度，而肾小球肾炎患者的最大增量为5度。体位性蛋白尿患者和肾小球肾炎患者从白天到夜间的选择性变化有显著差异，似乎是一项有用的鉴别试验。
