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| 31400:CALCIUM (Ca), IONIZED, SERUM | |||||||||
| Alias Names: | ICA / Cal Free Serum / Free Calcium | ||||||||
| Methodology: | Calcium Specific Electrode | ||||||||
| Edit Date: | 3/17/2009 | ||||||||
| Performed: | Daily | ||||||||
| Released: | Same day as tested | ||||||||
| CPT Code: | 82330 | ||||||||
| Specimen Collection Details | |||||||||
| Collection: | One 7.5 mL serum separator tube (SST). | ||||||||
| Handling: | Centrifuge with stopper in place within 1 hour of collection. Do no open the tube or split the specimen. | ||||||||
| Stability: | Specimen stable 24 hours ambient or 1 week refrigerated. Specimen unstable frozen. | ||||||||
| Standard Volume: | 7.5 mL serum separator tube (SST). | ||||||||
| Minimum Volume: | 4 mL serum separator tube (SST). | ||||||||
| Transport: | Serum in original serum separator tube (SST) refrigerated at 2-8° C. Do not freeze. Do not expose to air at any time during collection or transport process. | ||||||||
| Comments: | Ionized calcium is the physiologically active form of calcium essential for transmission of nerve impulses, muscle contractions, enzyme reactions and blood coagulation.
Se also: Calcium (Ca), Ionized, Arterial Whole Blood (31420). |
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| Rejection Criteria: | Specimen received in tube that has been opened; plasma; frozen specimen, or gross hemolysis. | ||||||||
| 1.19-1.30 mmol/L | |||||||||||||||||||