Thank you Jane and Tammy! Without their help I couldn't have pulled this project together. They instructed me on all the points of interpretation and provided me with many of the slides and pictures. Tammy was kind enough to make dipstick after dipstick showing the appropriate reactions for each of the cases in this educational module.

• The American Society of Clinical Pathologists.
• The Group for Research In Pathology Education (GRIPE).
• Cordah Robinson of the Indiana University Teaching and Learning Technologies Laboratory for helping with the image on the introductory page.
• To those "patients" who graciously let me use their photographs.
• And Dr. Valerie O'Loughlin for offering her helpful and witty insights as well as proofreading all of these case studies.