Vitamin D is the molecule responsible for maintaining calcium and phosphate balance in the body. It is formed by the effect of ultraviolet radiation from 7- dehydrocholesterol (ergosterol) in the Malpigi layer of the skin. Once synthesized, it is transported in the blood together with vitamin D binding protein and albumin. It has effects such as bone mobilisation, strengthening the immune system and taking part in cell proliferation. After Vitamin D is synthesised as 25 OH cholecalciferol, it is converted into an active hormone by the action of 1 alpha hydroxylase enzyme in the liver and kidney , the active form which is only effective after this conversion.
Interpretation:Vitamin D deficiency is below 12 ng/ml. In deficiency, rickets (ceased growth due to impaired mineralisation of bone and cartilage tissue in children, bending of long bones), osteomalacia (retardation in bone structure due to Vit D deficiency after bone growth is completed), resistance loss towards infections, back pain, bone pain, decrease in bone density (especially in old age and osteoporosis), hair loss, muscle pain (due to Ca deficiency), depression, fatique. Excess vitamin D leads to eating disorders, weight loss, frequent urination, heart rhythm disorders. However, the main effect may be calcium deposits and stone formation in vessels, tissues, and kidneys due to increased calcium level in the blood. Therefore, it is necessary to consider the dose recommendation in Vitamin D supplementation.
Sample: Arm venous blood. Nonfasting.
Working day: Every day
Result Time: Same day at 6 PM
