药物从肾脏排泄可损害肾小管，产生蛋白尿、血尿，血中尿素氮、肌酐升高等肾功能损害的表现。

Drug can be excreted from the kidney tubular damage, resulting in proteinuria, hematuria, blood urea nitrogen, creatinine, and other higher Renal damage.

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作者取患尿石病和健康绵羊血清各8份，分别测定其钙、磷、镁、钾、钠、氯、非蛋白氮和粘蛋白等成分。

Authors measured serum Ca, p, Mg, K, Na, Cl, nonprotein nitrogen and mucin of 8 serum in urolithiasis sheep and health sheep separately.

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用内源排泄物中氮的能值代替尿的能值进行代谢能的校正更为合理。

It was more reasonable to substitute the energy of uric acid with that of endogenous nitrogen losses.

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