急性间质性肾炎(acute interstitial nephritis,AIN)是一种病变累及肾脏间质与肾小管的急性肾功能不全,确诊需要肾活检。虽然一些尿液检查诊断指标用于不同类型的急性肾功能不全病人已有深入研究,但在 AIN 则罕有报道,且结果也不一致。为此, Acute interstitial nephritis (AIN) is a type of acute renal insufficiency that affects the renal interstitium and tubules and requires a kidney biopsy. Although some diagnostic tests for urinalysis have been intensively studied in patients with different types of acute renal insufficiency, they are rarely reported in AIN and the results are inconsistent. to this end,