{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T18:04:30Z","timestamp":1777917870627,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2008,12,18]],"date-time":"2008-12-18T00:00:00Z","timestamp":1229558400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2008,12,18]],"date-time":"2008-12-18T00:00:00Z","timestamp":1229558400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nephron"],"abstract":"<jats:p>Carbamylated hemoglobin (Carb Hb) levels were measured in 16 patients with a documented transient rise in BUN due to prerenal azotemia, in whom BUN levels before and after the episode were normal. They were compared with 13 controls. Carb Hb was expressed as carbamyl valine concentrations, which were significantly higher in the patients (166 \u03bcg\/g Hb) than in controls (95.3 \u03bcg\/g Hb, p &lt; 0.01). The mean maximum BUN level in the patients was 51.8 \u00b1 23.9 mg\/dl. There was a significant correlation between the product of mean BUN level times the number of days of BUN elevation, and the Carb Hb level (r = 0.5197; p &lt; 0.05). There was no correlation between Carb Hb and either mean BUN level or maximum BUN level. Elevated Carb Hb was seen after a minimum of 4 days\u2019 BUN elevation. Four patients had no elevation of Carb Hb despite elevated BUN levels. Conclusion: Carb Hb may be elevated after a minimum of 4 days\u2019 transient BUN elevation; Carb Hb is not useful in differentiating between mild acute renal failure and prerenal azotemia.<\/jats:p>","DOI":"10.1159\/000188704","type":"journal-article","created":{"date-parts":[[2008,12,24]],"date-time":"2008-12-24T09:00:08Z","timestamp":1230109208000},"page":"153-155","source":"Crossref","is-referenced-by-count":8,"title":["Carbamylated Hemoglobin in Prerenal Azotemia"],"prefix":"10.1159","author":[{"given":"J.M.","family":"Frazao","sequence":"first","affiliation":[]},{"given":"R.H.","family":"Barth","sequence":"additional","affiliation":[]},{"given":"G.M.","family":"Berlyne","sequence":"additional","affiliation":[]}],"member":"127","published-online":{"date-parts":[[2008,12,18]]},"container-title":["Nephron"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/188704","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000188704","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T18:25:02Z","timestamp":1777659902000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000188704"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,12,18]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000188704","archive":["Portico"],"relation":{},"ISSN":["1660-8151","2235-3186"],"issn-type":[{"value":"1660-8151","type":"print"},{"value":"2235-3186","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,12,18]]}}}