25-OH VITAMIN D (TOTAL)
What does 25-OH VITAMIN D (TOTAL) measure?
This test measures total 25-hydroxy vitamin D (25-OH vitamin D) in the blood, the main marker used to assess the body’s vitamin D status. It may be ordered to help evaluate possible low or high vitamin D levels, monitor levels during supplementation, or support assessment of conditions that can affect bone and mineral health. Interpretation depends on clinical context and other relevant findings.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
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Prices, report times and availability are shown from the catalog records for each eligible partner.
- Sample for analysis
- Confirm with the collection team
- Report time
- To be confirmed
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.