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HelpTest Code CA ION Ionized Calcium, Blood
Additional Codes
LAB54
Collection Method
Venous collection
Minimum Volume
0.5ml
Container
Dark green-top tube (sodium heparin)
Acceptable Specimens
Dark green-top tube (sodium heparin)
Reference or Target Ranges
| COMPONENT | Age | Reference Range |
| pH | All ages | 7.32-7.42 |
| Ca++ (mmol/L) |
< 1y >1y |
1.15-1.45 1.15-1.33
|
Reportable Units
Varies
Critical Value
| Component | Age | Critical Low | Critical High |
| pH | All ages | ≤7.2 | ≥7.6 |
| Ca++ (mmol/L) |
< 1y >1y |
<0.55 <0.55 |
>1.51 >1.51 |
Reasons for Rejection
| Hemolysis Threshold | No gross hemolysis |
| Icterus Threshold | No significant interference |
| Lipemia Threshold | No significant interference |
| Other | QNS, contaminated, improperly Labeled, improper specimen type, specimen past 2 hours after opening |
Specimen Stability
| Ambient | 4 hours once opened and recapped |
| Refrigerated (4°C to 8°C) | 24 hours unopened |
| Frozen(-40°C to 0°C) | N/A |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
STAT: 60 minutes Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | GEM Premier 5000 |
CPT Codes
82330
Last review/edit date
March 2024