Blood Test
Vitamin D Test
Vitamin D Test measures 25-hydroxyvitamin D in the blood to assess vitamin D status. Vitamin D is important for calcium absorption, bone health and normal muscle function. Doctors may recommend this test when investigating suspected vitamin D deficiency or monitoring treatment.
Sample Type
Blood
Preparation
Required
Category
Blood Test
Service
Diagnostic Testing
Before Your Test
Test Preparation
Fasting is generally not required. Inform your doctor about vitamin D supplements and any medicines you are taking. Follow any additional instructions provided before sample collection.