Test Overview – This test is performed to check for any signs of bone disorder such as weak bones that may occur as a result of a vitamin D deficiency. Vitamin D is an essential vitamin required by the body to absorb calcium and strengthen bones.
When is it recommended? – Early morning.
Diagnostic ailment – Bone health, rickets, osteoporosis.
Significance – Vitamin D is critical to help the body absorb calcium and maintain strong bones.
What does the test result mean? – In general, a result between 20 ng/mL and 50 ng/mL is considered sufficient for healthy people.
A level less than 12 ng/mL is indicative of vitamin D deficiency.
A level higher than 50 mg/mL indicates hypervitaminosis D i.e. extremely high levels of vitamin D.
Special Instructions – While some doctors may permit this test to be done at any time of the day, it is advisable to opt for a fasting blood test. Here, one should not eat or drink anything (except plain water) for at least 8 hours before the test.