Description
The Calcium blood test measures the amount of calcium in your blood, an essential mineral that plays a vital role in many body functions.
Why the Calcium Test Is Important
Calcium is crucial for:
- Bone health – maintaining strong bones and teeth
- Heart function – supporting healthy heart rhythms
- Nervous system – enabling proper nerve signaling
- Muscle function – allowing muscles to contract and relax properly
- Assessing medical conditions – including parathyroid disorders and chronic kidney disease
The test measures total calcium, which includes:
- Free (ionized) calcium – the biologically active form circulating in the blood
- Bound calcium – attached to proteins in the blood
Fasting: Not required.
