Mountain West · Vitamin D 25-Dihydroxy (Calcitriol) Test
Vitamin D 25-Dihydroxy (Calcitriol) Test in Montana
Below is a plain-language overview of the vitamin d 25-dihydroxy (calcitriol) test. This blood test measures the level of vitamin D in your body. It helps assess vitamin D status and is important for bone health.
What this test is
The Vitamin D 25-Dihydroxy test, also known as calcitriol testing, measures the main form of vitamin D found in the blood. This form indicates how much vitamin D your body has stored.
What it measures
- 25-Dihydroxyvitamin D — reflects vitamin D levels in the body
What the test involves
This test is performed on a blood sample. A healthcare professional will draw blood from a vein in your arm using a needle.
Why it is often ordered
Clinicians often order this test to check for vitamin D deficiency or to monitor conditions related to calcium and bone metabolism. It can also be used to assess kidney function.
Preparation
Follow any specific instructions provided by the laboratory for sample collection. Some tests may require fasting, while others do not.
How results are reported
Results are typically reported within a few business days. Your laboratory will provide a reference range, which is a set of values considered normal for healthy individuals.
Before you go
- Specific preparation instructions
- Typical turnaround time
- How to interpret your results
Cities
Vitamin D 25-Dihydroxy (Calcitriol) Test in Montana communities
Choose your city for local context and to request this test.