The Vitamin D3 (1,25 Dihydroxy Cholecalciferol) test measures the level of the active form of vitamin D in the blood. This form of vitamin D plays an important role in maintaining calcium balance, bone strength, and proper functioning of the kidneys and parathyroid glands.

Vitamin D helps the body absorb calcium and phosphorus from food. Therefore, maintaining the right level of vitamin D is essential for healthy bones and overall body function. Abnormal levels of active vitamin D may be associated with kidney disorders, bone diseases, or problems related to the parathyroid glands.

Doctors may recommend this test to investigate abnormal calcium levels or to evaluate certain metabolic and kidney-related conditions. In addition, the test may help assess how the body processes and regulates vitamin D.

Important Instructions

• Inform the technician or doctor about any medications you are taking.

• Mention if you are using vitamin D supplements or calcium supplements.

• Inform the technician if you are taking kidney or hormone-related medications.

• Tell the technician if you are taking blood thinners (anticoagulants).

• Carry previous vitamin D or calcium test reports, if available, for better evaluation.