Vitamin D,1, 25-dihydroxy

Vitamin D, 1, 25-dihydroxy Blood Test This test is used to measure Vitamin D levels in the blood.  The Vitamin D 25-Dihydroxy test measures the active form of Vitamin D which is produced in the liver and kidneys through the conversion of Vitamin D 25-Hydroxy.  This test is not typically used as a routine measurement to assess if a person has a vitamin D deficiency because it may show normal results even if a person has an overall deficiency.  It is more useful when a person is suspected of having a condition which is producing an excess of vitamin D such as Sarcoidosis or certain types of Lymphoma.  This test may also be ordered to aid in the diagnosis or Parathyroid disorder or kidney failure. For a test which is more commonly used to detect if a person may be suffering from a Vitamin D Deficiency, customers may order the Vitamin D 25-Hydroxy Test. Turnaround time for the Vitamin D, 1, 25-dihydroxy is typically 2-3 business days. After placing an order, you will receive a doctor appr