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HelpTest Code LAB2039 IONIZED CALCIUM
Specimen Information
| Container | Specimen | Temperature | Collect Vol | Submit Vol | Min Vol | Stability |
| **Green Top | Whole Blood | Ambient | 3 mL | 3 mL | 0.8 mL | 30 min |
| **Green Top | Whole Blood | On ice | 3 mL | 3 mL | 0.8 mL | 4 hrs |
| *Syringe | Heparinized Whole Blood | Ambient | 3 mL | 3 mL | 0.8 mL | 30 min |
| *Syringe | Heparinized Whole Blood | On Ice | 3 mL | 3 mL | 0.8 mL | 4 hrs |
| Green Top | Plasma | Ambient | 3 mL | 3 mL | 0.8 mL | 3 hrs |
| Green Top | Plasma | Refrigerate | 3 mL | 3 mL | 0.8 mL | 24 hrs |
**For Green Top tubes – Do not remove the cap and fill to black fill line see below.
Sodium heparin or lithium heparin are both acceptable. Plasma separator tube (PST) is acceptable.
*For syringes remove needle and cap immediately.
Frozen samples are NOT acceptable. On ice samples ONLY.
Overheparinization and exposure to air can decrease result.
Green microtainers are not ideal for this assay and should be used only when a vacutainer cannot be obtained.
**For Green Top tubes – Do not remove the cap and fill to black fill line see below.
Test Schedule / Analytical Time / Test Priority
Daily / Immediately / Available STAT
Reference Range
| Age | Sex | Low | High | Units |
| 0 - 1 month | All | 1.00 | 1.50 | mmol/L |
| 1 month - 6 months | All | 0.95 | 1.50 | mmol/L |
| ≥6 months | All | 1.14 | 1.35 | mmol/L |
CPT(s)
| Description | CPT Code |
| Calcium, Ionized, Whole Blood | 82330 |
Method
Ion-Selective Electrode
Instrumentation
Siemens Rapid Point 500
Result Component(s)
| Reporting Name | Epic Code | Atlas Code | Mayo Access ID | LOINC |
| Calcium, Ionized | ICA | 1994-3 |
Performing Location
University of Vermont Medical Center
Section
Chemistry-1
Is the UVMMC lab NY State Certified to perform this testing? Yes/No
Yes