Jan 11, 2024 · When you have a normal range of ionized calcium, it’s a sign that your body is working as it should. The following table shows normal ionized calcium ranges for newborns, children and adults:

Aug 1, 2025 · Since the molecular weight (Mol wt) of calcium is 40 and the valence is +2, 1 mg/dL is equivalent to 0.25 mmol/L and 0.5 mEq/L. Thus, the normal range of total serum calcium …

Ionized calcium binds to negatively charged sites on protein molecules, competing with hydrogen ions for the same binding sites on albumin and other calcium-binding proteins. This binding is...

In some individuals, total calcium may appear normal while ionized calcium is reduced, particularly when albumin levels are low or acid–base balance is altered. Symptoms of low ionized calcium reflect …

Ionized calcium, which accounts for 50% to 55% of total calcium, is the physiologically active form of calcium. Low ionized calcium values are often seen in kidney disease, critically ill patients, or …

Levels of ionized (or free) calcium, the biologically active form, in serum are also used to measure calcium status. The normal range of ionized calcium in healthy people is 4.6 to 5.3 mg/dL (1.15 to …

Jul 26, 2025 · Ionised calcium testing is usually ordered if the results of a total calcium test are not what they are expected to be. If you have a low or high total calcium result it is viewed as sign of a …

A normal range of total blood calcium in adults is usually between 8.5 and 10.3 milligrams/deciliter (mg/dL). A normal ionized calcium level generally ranges between 4.6 to 5.3 mg/dL.

Jan 14, 2025 · The Ionized Calcium Test measures the free calcium in the blood, reported in millimoles per liter (mmol/L) or milligrams per deciliter (mg/dL). Moreover, the normal reference range for …

Sep 27, 2025 · Reference range is 4.5 - 5.3 mg/dL. Critical values are <3.5 mg/dL and >6.5 mg/dL. Specimen requirement is one SST tube of blood. Tourniquet time should not exceed one minute. The …