The reference ranges provided here represent a theoretical guideline that should not be used to interpret your test results. Some variation is likely between these numbers and the reference range reported by the lab that ran your test. Please consult your doctor. For more information on reference ranges, please read Reference Ranges and What They Mean.
|Age||Conventional Units2||SI Units3|
|0-18 years||Not available due to wide variability. See child's lab report for reference range.|
|Adult||6-20 mg/dL||2.1-7.1 mmol/L|
|>60 years||8-23 mg/dL||2.9-8.2 mmol/L|
1 from Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. Burtis CA, Ashwood ER, Bruns DE, eds. 5th edition, St. Louis: Elsevier Saunders; 2011.
2 Conventional Units are typically used for reporting results in U.S. labs
3 SI Units are used to report lab results outside of the U.S.