A vitamin D blood test measures the level of 25(OH)D in your blood. Abnormal levels of vitamin D can indicate bone disorders, nutrition problems, organ damage, or other medical conditions.

SPECIMEN: 3 mL (1 mL min.) serum from 1 SST. Ship refrigerated or frozen. Wrap in aluminum foil to protect from light. Overnight fasting is preferred.

STABILITY: Room: 8 hrs; Refrigerated: 48 hrs; Frozen: 8 weeks

REPORT: Daily

PRE-TEST INFORMATION: No special preparation required.

USAGE: Vitamin D, Total represents the main body reservoir and transport form. Mild to moderate deficiency is associated with Osteoporosis / Secondary Hyperparathyroidism while severe deficiency causes Rickets in children and Osteomalacia in adults. Prevalence of Vitamin D deficiency is approximately >50% specially in the elderly. This assay is useful for diagnosis of vitamin D deficiency and Hypervitaminosis D. It is also used for differential diagnosis of causes of Rickets & Osteomalacia and for monitoring Vitamin D replacement therapy.