Ionized calcium is the physiologically active form of calcium and a better indicator than total calcium of the functional status of calcium metabolism.
1.12 - 1.30 mmol/L
- Free Calcium
- Ionized Calcium
- CALCIUM, IONIZED
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Collect specimen in SST (preferred) or green top tube. Do not aliquot serum or remove stopper for any reason. Centrifuge and refrigerate intact specimen.