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| Title | CALCIUM, IONIZED |
| Specimen Requirement | <p>Draw blood in a SST. Allow blood to clot 30-60 minutes and centrifuge with stopper in place 10 minutes.</p>
<p>Send unopened tube refrigerated. <strong><span style="text-decoration: underline;">CANNOT BE A SHARED SAMPLE.</span> PLEASE WRITE IONIZED CALCIUM ON THIS TUBE.</strong></p> |
| Methodology | |
| Stability | Room temp unacceptable; Refrigerated 48 hours |
| Reference Range | By Report* |
| Turnaround | 1-3 days Performed Mon-Fri |
| Clinical Use | <p>Evaluate nonbound calcium, calcium metabolism, physiologically active calcium fraction, hyperparathyroidism, ectopic hyperparathyroidism.</p> |
| Test Code | ICAW |
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