Because Canada is located above the 35° North latitude, the average Canadian’s exposure to sunlight is insufficient to maintain adequate Vitamin D levels, especially during the winter. Therefore, measuring serum 25-hydroxyvitamin D levels is not necessary because routine supplementation with Vitamin D is appropriate for the general population. An exception is made for measuring Vitamin D levels in patients with significant renal or metabolic disease.

Conditions: Vitamin D, Vit D Deficiency, Osteoporosis, Osteopenia

Diagnostic Tests: 25-OH-Vitamin D Deficiency Screening