The liver produces urea in the urea cycle as a waste product of the digestion of protein. Normal human adult blood should contain between 6 and 20 mg of urea nitrogen per 100 ml (6â20 mg/dL) of blood. Individual laboratories will have different reference ranges as the assay used will vary between laboratories.
Created on 8/7/2006 GX Last updated on 10/4/2007 GX Page 2 of 10 Part 1: Reference Citations in Text (Chapter 3, pages 207-214) Throughout your paper, you should document your study by citing the author and date of the publications (journal articles, books, dissertations, etc) you used in your research.
APA References (6th edition) Helpful Hints. â¢ Only the major publication for each entry is italicized: (Article title, Journal Title). â¢ All reference pages are double-spaced throughout. (exception: dissertation reference pages). â¢ Capitalization rules vary, depending upon type of reference (e.g., book vs. journal). â¢ Each reference entry is indented after the first line (hanging indent).