Document Classification

Section Type: RESULTS

Text: With theophylline, the mean serum creatinine level decreased nonsignificantly 12 (1. 98 mg/dL + / - 0. 77 [175. 0 micromol/L + / - 68. 1] ; P =. 09), 24 (1. 97 mg/dL + / - 0. 75 [174. 1 micromol/L + / - 68. 1] ; P =. 99), and 48 (1. 94 mg/dL + / - 0. 77 [171. 5 micromol/L + / - 68. 1] ; P =. 99) (1. 94 mg/dL + / - 0. 77 [171. 5 micromol/L + / - 68. 1] ; P =. 99) hours after contrast medium administration.