Vitamin D is essential to your health. Unfortunately, the symptoms of vitamin D-deficiency are mild, so many people are unaware that they are deficient. Normally, you can get enough vitamin D from a day of sun exposure. However, tall buildings, long work days, and hectic lives make it less and less possible for us to get outside to get our daily dose.
Total Vitamin D and 25-Hydroxy Vitamin D (25-OH)
This test detects vitamin D deficiencies by independently monitoring both vitamin D2 and D3 levels using a technique known as liquid chromatography tandem mass spectrometry (LC-MS/MS). Vitamin D deficiency is a potential cause of health problems ranging from osteoporosis to cardiovascular disease. This is a blood spot test.