Vitamin D-1,25-Dihydroxy Serum

Vitamin D plays an important role in calcium absorption and its deficiency can lead to abnormal bone development, bone weakness, and pain. It also helps maintain proper levels of calcium, phosphate, and parathyroid hormone. Testing can be undertaken if Vitamin D insufficiency or deficiency is suspected to be the cause of symptoms. It is performed only if indicated, else 25 hydroxy vitamin D levels are usually tested. 

Vitamin D plays a crucial role in maintaining healthy bones by helping the body absorb calcium. It also plays a role in immune system function, nervous system maintenance, cell growth, and reduction of inflammation. Additionally, it helps in maintaining stable levels of calcium and phosphorus in the blood. 

• The Vitamin D-1, 25-dihydroxy serum test is used to measure the levels of 1, 25-dihydroxy vitamin D (also known as calcitriol) in the blood.
• This form of vitamin D is the most biologically active and is responsible for maintaining proper calcium and phosphorus levels in the body. 
• This test is typically used to help diagnose conditions related to vitamin D metabolisms or bone disorders, such as osteoporosis or rickets. It is also used to monitor the effectiveness of vitamin D therapy.

Written by: Dr. Shibani R, Medical Writer, Medical Affairs