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
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Days Test Performed
Daily, 24 hours
Soft Order Code
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
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Offsite Collection Instructions
Collect specimen in SST (preferred) or green top tube. Do not aliquot serum or remove stopper for any reason. Centrifuge and refrigerate intact specimen.
Other Rejected Containers: Open Containers, EDTA plasma (lavender)
2 mL serum
0.3 mL serum