Specimen collection time for enzyme analysis in urine.
Catalytic activity of N-acetyl-beta-D-glucosaminidase, alanine aminopeptidase, lactate dehydrogenase, isoenzyme 1 of lactate dehydrogenase, lysozyme, gamma-glutamyl transferase and alkaline phosphatase in urine specimens collected between 6 a.m. and 9 a.m. were determined in 25 patients with acute renal failure. We found no statistical differences (Wilcoxon's t test) between specimens collected at 6 a.m. and 9 a.m. We conclude that, in renal patients, the first morning specimen (overnight urine) may be used for enzyme analysis.
D058186:Acute Kidney Injury / Q000652:urine; D000328:Adult; D002384:Catalysis; D004798:Enzymes / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013048:Specimen Handling; D013997:Time Factors
D004798:Enzymes