A calcium blood test is a diagnostic test that measures the level of calcium in the blood. Calcium is an essential mineral that is important for a variety of bodily functions, including bone health, muscle function, and nerve function. The test is commonly used to diagnose and monitor a range of medical conditions related to calcium imbalance in the body.
The test involves drawing a small sample of blood from a vein in your arm. The blood sample is then sent to our laboratory for analysis. Calcium blood tests can measure both total calcium levels and ionized calcium levels, which measures the amount of calcium that is not bound to other substances in the blood.
Normal calcium levels in the blood are typically between 8.5 and 10.5 milligrams per deciliter (mg/dL) for adults. Abnormal levels of calcium in the blood can be caused by a number of factors, including certain medical conditions, medications, and hormonal imbalances.
If calcium levels are too high (hypercalcemia) or too low (hypocalcemia), it can lead to serious health complications such as osteoporosis, kidney stones, and seizures. Treatment for abnormal calcium levels may include medication, lifestyle changes, and addressing the underlying cause.
A calcium blood test may be indicated for a variety of medical reasons, including:
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