Calcium, Ionized
Test Mnemonic
ICA
CPT Codes
- 82330 - QTY (1)
LOINC ®
1995-0
Aliases
- Free Calcium
Includes
- Calcium Ionized
- Calcium Normalized
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3.5 mL | Serum | SST (Gold) | Refrigerated | Fill tube completely and allow to clot. Do not expose to air (anaerobic handling). Centrifuge within 2 hours of collection. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 mL | Serum | SST (Gold) | Fill tube completely and allow to clot. Do not expose to air (anaerobic handling). Centrifuge within 2 hours of collection. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 4 hrs (after separation from cells) |
| Refrigerated | 7 days (after separation from cells) |
| Frozen | Unacceptable |
Days Performed
Sun - Sat
Turnaround Time
1 hour
Methodology
| Name | Description |
|---|---|
| Ion Selective Electrode (ISE) |
Reference Range
| Calcium Ionized | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | 1.08 - 1.30 | mmol/L | Years | 99 Years | Urgent | < 0.9 and > 1.5 | mmol/L |
| Calcium Normalized | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | 1.08 - 1.30 | mmol/L |
Special Info
Specimens must be received in an unopened primary tube. Do not aliquot. Test not available for add on testing.
Clinical Info
Evaluation of calcium metabolism