Test Code Ca Calcium Level Total
Aliases
Calcium
Patient Preparation
No special patient preparation required
Collection Method
Venous collection
Minimum Volume
- Adults: 0.8ml
- Pediatric: 0.5mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (lithium heparin)
Reference or Target Ranges
0 – 30 days | 7.6 – 10.4 mg/dL |
3 days – Adult | 8.6-10.2 mg/dL |
Reportable Units
mg/dL
Critical Value
0 – 30 days | <7 mg/dL or >11 mg/dL |
30 days – Adult | <6 mg/dL or >13 mg/dL |
Reasons for Rejection
Hemolysis Threshold | 1000 mg/dL |
Icterus Threshold | 60 mg/dL |
Lipemia Threshold | 1000 mg/dL |
Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
Ambient | 7 days |
Refrigerated (4°C to 8°C) | 3 weeks |
Frozen(-40°C to 0°C) | 3 months |
Performance Information
Days and Time Performed | 24/7 |
Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
Stat Availability | Yes |
Performing Bench | UH Chemistry, WCH Chemistry |
Methodology/Method Description | Roche Cobas – NM-BAPTA |
CPT Codes
82310