Service Providers for Vitamin D ( 25 - OH )

The Vitamin D (25-OH) test measures the level of 25-hydroxyvitamin D in the blood, which is the primary form of vitamin D circulating in the body. This test is used to assess vitamin D deficiency or excess, which can impact bone health, immune function, and overall health. A blood sample is collected for the test. No special preparation is typically required. Risks include mild discomfort during the blood draw. Low levels may indicate deficiency, while high levels may indicate excessive supplementation. Normal activities can be resumed after the test.