Vitamin D Total

The Vitamin D total test is done to measure the total amount of the various forms of Vitamin D in blood. This test helps to screen for and monitor bone disorders. It is also sometimes useful for checking vitamin D levels in people with chronic illnesses such as asthma, psoriasis, and certain autoimmune diseases.

Vitamin D deficiency causes symptoms like bone pain, fatigue and muscle weakness, and is usually treated by increasing exposure to sunlight and taking supplements .