vitamin d2/d3 (uplc)
NutritionBlood sampleResults 3-5 daysNo fasting
Vitamin D2/D3 (UPLC)
A detailed blood test that separately measures vitamin D2 and vitamin D3 using a precise laboratory method. It gives a clear picture of your vitamin D status and the source of your vitamin D.
Sample
Blood
Results
3-5 days
Fasting
Not required
Follow-up
Optional add-on
What this test detects
25-hydroxyvitamin D2 and D3
UPLC · serum
Quantitative · ng/mL
When to get this test
Detailed vitamin D assessment
Separately quantifies the D2 and D3 forms for a precise picture of vitamin D status.
Monitoring supplementation
Helps distinguish vitamin D from supplements (often D2) versus the body's own D3.
Bone and general health
Useful for people with bone health concerns or suspected vitamin D deficiency.
How to prepare
01
No special preparation needed.
02
Inform the lab if you are taking vitamin D or other supplements.
Common questions
How long do results take?
Results are typically ready within 3 to 5 days.
How is this different from a standard vitamin D test?
This test measures the D2 and D3 forms separately using a precise method, while a standard test usually reports the total only.
Do I need to fast?
No fasting is required for this test.