- Sample Type: Blood
- Fasting: Required ( 10 – 12 hours )
Vitamin D is essential for strong bones, because it helps the body use calcium from the diet. Traditionally, vitamin D deficiency has been associated with rickets, a disease in which the bone tissue doesn’t properly mineralize, leading to soft bones and skeletal deformities.
C-reactive protein (CRP)
A high level of CRP in the blood is a marker of any condition that causes inflammation, from an upper respiratory infection to cancer. High CRP levels can indicate that there is inflammation in the arteries of the heart, which can mean a higher risk for heart attack.
The total calcium test is the test most frequently ordered to evaluate calcium status. In most cases, it is a good reflection of the amount of free calcium present in the blood since the balance between free and bound is usually stable and predictable.