Vitamin D, 25-OH

VITD

2-8 C (ice packs)

store at 2-8 C up to 12 days, -20C up to 3 months

0.5 mL

Plasma (lithium heparin, sodium heparin)

13.0-48 ng/mL

Routine venipuncture

Draw tube

Delayed 1-step Immunoassay using CMIA (Chemiluminescent Microparticle Immunoassay)

Vitamin D deficiency is a cause of secondary hyperparathyroidism and diseases resulting in impaired bone metabolism (like rickets, osteoporosis, osteomalacia). Reduced 25-OH vit D in blood have been associated with an increasing risk of many chronic disease, including common cancers, autoimmune and infectious diseases, or cardiovascular problems.

25-OH Vitamin D