Vitamin D 25-Dihydroxy (Calcitriol) Test

The Vitamin D 25-Dihydroxy (Calcitriol) test measures the levels of calcitriol in the blood, which is the active form of Vitamin D. Calcitriol plays an important role in maintaining healthy bones and teeth, supporting immune function, and regulating calcium levels in the body.

Abnormal levels of calcitriol can indicate deficiencies or excess levels of Vitamin D, which can lead to various health problems such as osteoporosis, rickets, and other bone disorders.

Doctors may order this test if they suspect a Vitamin D deficiency or if a patient has symptoms such as bone pain, muscle weakness, or fatigue. Treatment for abnormal calcitriol levels may involve Vitamin D supplementation or other interventions to help restore proper levels in the body.