Description
Calcium is essential for strong bones, muscle and nerve function and a steady heartbeat, and measuring it also serves as an important marker of several underlying conditions.
About the Calcium Test
This test measures the level of calcium in your blood. Beyond bone health, calcium is vital for muscle contraction, nerve signalling and heart rhythm, and your body keeps it within a tight range. Levels that are too high or too low can indicate problems with the parathyroid glands, kidneys, bones or vitamin D, making calcium a useful part of a broader health assessment.
Preparation and turnaround
A venous blood sample is taken; fasting is sometimes requested, and our team will confirm when you book. The test takes only a few minutes and results are usually available within one working day. Because calcium is tightly regulated, abnormal results are best reviewed by a doctor, often alongside vitamin D and kidney tests.
Frequently asked questions
What can abnormal calcium indicate?
High or low calcium can relate to the parathyroid glands, kidneys, bones or vitamin D levels, and is interpreted alongside other tests.
Do I need to fast?
Fasting is sometimes requested. We will confirm the preparation needed when you book.
Is calcium only about bones?
No. Calcium is also essential for muscle function, nerve signalling and a regular heartbeat.
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