Calcium, Ionized (CA ION)
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| Synonyms:
| Ionized Calcium, whole blood or serum |
| Specimen: | Preferred specimen- Green (lithium heparin) PST tube.
SST (serum separator tube) or Red (no preservative) UNOPENED top vacutainer tube is acceptable.
DO Not collect sample using a tourniquet.
Whole blood should be analyzed within 15-30 minutes of collection. |
| Volume: | 2 mL whole blood |
| Minimum Volume: | 500 microL whole blood or heparinized plasma |
| Collection: | Plasma is stable for one hour when centrifuged and 4 hours at 2-8. Serum is stable at room temp for up to 24 hours when SST is centrifuged and the cap is unopened. |
| Rejection Criteria: | Clotted sample; incorrect specimen type; improper labeling. |
| Reference Range: | See report |
| Methodology: | |
| Test Use: | |
| Additional Information: | For Venous collection - Remove tourniquet for 1 minute before collection. Samples should be collected under anaerobic conditions. Orders for serum will be referred to outside reference lab. |
| Testing Includes: | |
| Testing Facility: | AnMed Laboratory |