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By Mayo Clinic staffIf your blood sample is being tested only for hemoglobin, you can eat and drink normally before the test. If your blood sample will be used for additional tests, you may need to fast for a certain amount of time before the test. Your doctor will give you specific instructions.
- Ganong WF. Oxygen transport. In: Ganong WF. Review of Medical Physiology. 22nd ed. New York, N.Y.: The McGraw-Hill Companies; 2005. http://www.accessmedicine.com/content.aspx?aID=706575&searchStr=oxygen+transport. Accessed Jan. 20, 2009.
- Ganong WF. Circulating body fluids. In: Ganong WF. Review of Medical Physiology. 22nd ed. New York, N.Y.: The McGraw-Hill Companies; 2005. http://www.accessmedicine.com/content.aspx?aID=705037. Accessed Jan. 20, 2009.
- Hemoglobin. In: Nicoll D, et al. Pocket Guide to Diagnostic Tests. 5th ed. New York, N.Y.: McGraw-Hill Companies; 2008. http://www.accessmedicine.com/popup.aspx?aID=3136818&searchStr=hemoglobin. Accessed Jan. 20, 2009.
- Hemoglobin. Lab Tests Online. http://labtestsonline.org/understanding/analytes/hemoglobin/test.html. Accessed Jan. 20, 2009.
- Iron deficiency anemia. Iron Disorders Institute. http://www.irondisorders.org/Disorders/Iron-Deficiency.asp. Accessed Jan. 20, 2009.
- Shayne M, et al. Hematology in older persons. In: Lichtman MA, et al. Williams Hematology. 7th ed. New York, N.Y.: McGraw-Hill Companies; 2006.
- Laboratory reference values. Hemoglobin. Rochester, Minn.: Mayo Foundation for Medical Education and Research; Dec. 2008.
