There are two types of vitamin D measured in blood: 25-hydroxyvitamin D [25(OH)D] and 1,25-dihydroxyvitamin D [1,25(OH)(2)D]. 25(OH)D is the main form of vitamin D hormones found in the blood and is an inactive precursor to become the active hormone 1,25(OH)(2)d. Because of its long half-life and high concentration, 25(OH)D is primarily used to assess and monitor vitamin D status.
Vitamin D helps regulate the absorption of calcium, phosphorus and magnesium and is essential for bone growth and health. Vitamin D deficiency causes bone deterioration which can lead to diseases such as rickets in children and osteomalacia in adults. Vitamin D is also involved in the regulation of autoimmunity, metabolic function, and cancer prevention. Vitamin D tests are used to detect and diagnose vitamin D deficiency.
Specification
Working range - 5.0-80.0 ng/mL
Reference range - * Deficiency : 10 ng/mL
* Insufficiency : 10-29 ng/mL
Storage condition - Cartridge: 2-30 ℃
Detection buffer: 2-8 ℃
Shelf life - 24 months