Jun 7, 2024 · Here, your body converts vitamin D to a chemical known as 25-hydroxyvitamin D, also called calcidiol. The 25-hydroxy vitamin D test is the best way to monitor vitamin D levels. The amount of...

Lower than normal 25-OH vitamin D levels can result from a dietary deficiency, poor absorption of the vitamin or impaired metabolism of the sterol in the liver. A 25-OH vitamin D deficiency can lead to bone diseases such as rickets and osteomalacia. Above normal levels can …

The 25-hydroxy vitamin D test measures your blood levels of vitamin D. Results are reported in nanomoles per liter (nmol/L) or nanograms per milliliter (ng/mL): This test is often recommended for individuals with bone pain, low calcium levels, or risk factors for vitamin D deficiency. Emerging research suggests vitamin D may contribute to:

This highly automated test measures both D 2 and D 3 together and reports a total 25-hydroxy vitamin D. Major clinical studies, including (but not limited to) the Centers for Disease Control (CDC) National Health and Nutrition Examination Survey (NHANES) data base, the Women's Health Initiative (WHI) Studies, and the Harvard-Based Health Profess...

Once a deficiency has been identified, the Vitamin D 25-hydroxy blood test is also used on a continual basis to monitor treatment results. A medical provider will order this blood test if there is the suspicion of an electrolyte imbalance or there is …

Feb 5, 2025 · Vitamin D must be converted in the liver into a chemical called 25-hydroxyvitamin D or calcidiol. The 25-hydroxyvitamin D test is the best way to monitor vitamin D. The amount of 25-hydroxyvitamin D in the blood indicates how much vitamin D the body has. The test tells you if your levels are too high or too low.

Jul 16, 2020 · In this article, we will discuss what 25-hydroxy vitamin D tests are for, what to expect, what the results mean, and how to increase vitamin D levels. What is a 25-hydroxy vitamin D test? By taking...

Learn about 25-hydroxy vitamin D test, find a doctor, complications, outcomes, recovery and follow-up care for 25-hydroxy vitamin D test.

May 20, 2024 · The 25-hydroxy vitamin D test is the most accurate way to measure how much vitamin D is in your body. Vitamin D helps regulate calcium and phosphate levels in the body. 25-OH vitamin D test; Calcidiol; 25-hydroxycholecalciferol test. A blood sample is needed. Usually, you will not need to fast.

25-Hydroxy vitamin D is used to measure vitamin D status; it includes results for total 25-hydroxy vitamin D 2 and 25-hydroxy vitamin D 3. This 25-hydroxy vitamin D assay and the alternative immunoassay test (Vitamin D, 25-Hydroxy [081950]) are both CDC-certified for accuracy. 1. 1. Centers for Disease Control and Prevention (CDC).