الوصف
Vitamin D has been associated, directly or indirectly, with over 200 genes within the body. It has been shown to play a role in the reduction of risk from different types of cancer, MS, Alzheimers, hypertension and of course osteoporosis. Understanding the true amount of Vitmain D within the body is essential, especially at the lower end of the spectrum. Please also see Vitamin D, Serum.
دواعي الإستعمال
The levels of 25-OH- Vitamin D increase in proportion to vitamin D intake and synthesis and are commonly used as an indicator of vitamin D status. Low vitamin D levels are associated with many diseases including rickets, autoimmune disease, hypertension and cancer. Performing the test through the use of LC-MS/MS is still the "Gold Standard" test for Vitamin D as it not only produces the most accurate results but also separates and reports both active forms of Vitamin D (D2 and D3).
نوع العينة والكمية والشروط
1 ml Serum 1 ml K2, K3-EDTA or Li-Heparin Plasma Stability: 8 Hours at 18-25 °C 4 Days at 2-8 °C 24 Weeks at -20 °C
إحتياطات خاصة
The normal range through this "GOLD STANDARD" method is a reflection of the combination of both D2 and D3.
المعدل الطبيعي
Deficiency: < 20 ng/mL < 50 nmol/L Insufficiency: 20 - 29 ng/mL 50 - 74 nmol/L Sufficiency: 30 - 100 ng/mL 75 - 250 nmol/L Toxicity: >100 ng/mL > 250 nmol/L
