What are the types of calcium tests?

There are two main types of calcium tests: Total Calcium Test and Ionized Calcium Test. The Total Calcium Test measures both bound and free calcium in the blood and is commonly used in routine check-ups. The Ionized Calcium Test measures only free calcium, which is the active form in the body. Ionized calcium testing is more specific and often recommended when conditions like parathyroid disorders, kidney disease, or critical illnesses are suspected. Your doctor will determine which test is more appropriate based on your symptoms and medical history.