Ionic Calcium Test

An Ionic Calcium test is a blood test that measures the level of ionized calcium in the blood. Calcium is an essential mineral that plays important roles in many bodily functions such as nerve, muscle, and heart function, and blood clotting.

Pre-test preparation: There is no specific preparation required for an ionic calcium test.

Testing method: A small sample of blood is taken from a vein in your arm and sent to a laboratory for analysis.

Common symptoms that may prompt your doctor to order an ionic calcium test include: weakness, fatigue, confusion, muscle spasms, and abnormal heart rhythms.

Diagnosis: The ionized calcium test is used to diagnose and monitor disorders of calcium metabolism, such as hypercalcemia (high calcium levels) or hypocalcemia (low calcium levels) and to evaluate the function of the parathyroid gland.

Reference range: The normal range for ionized calcium in the blood is typically 4.5-5.3 mg/dL.

Normal values may vary depending on the laboratory that performs the test.

Medical disclaimer: The information provided is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. It is important to follow the instructions given by your doctor or the laboratory performing the test. If you have symptoms that suggest a disorder of calcium metabolism, or have been advised to have an ionized calcium test, it is important to work closely with your doctor to understand the results and any further actions that may be necessary to manage your health.