Calcium, Ionized
Additional Codes
Epic# -
LAB5558
Cerner name(s):
- Calcium Ionized
- IonCa
- Ion Ca
- Caion
- Ca Ion
Performing Lab(s)
Memorial-Belleville only
Specimen Requirement (s)
Specimen Type: whole blood
Container/Tube: Lithium Heparin (mint green)
Specimen Volume: 4.5 mL
Specimen Minimum Volume: 3.4 mL
Collection Instructions: Tube must be at least 3/4 full. Do not centrifuge specimen prior to testing. Specimen must be collected anaerobically and not be exposed to air prior to testing. Do not remove stopper.
Unacceptable Conditions
- MICROTAINERS ARE NOT ACCEPTABLE.
- Specimens centrfigued before testing (must be whole blood).
- Specimen exposed to air before testing.
Day(s)/Shift(s) Test Set Up and Turnaround Time
Sunday through Saturday
Hours: 24 hours
Turnaround Time:
STAT: 60 minutes
Routine: less than 8 hours from receipt.
Transport and Stability
Transport temperature: Ambient to lab
Analyte Stability:
Ambient: NA
Refrigerated: 24 hours
Frozen: NA
Reference Values
Calcium, ionized
Age | Value |
0 minutes - 1 day | 4.50 - 5.75 mg/dL |
1 - 4 days | 4.15 - 5.40 mg/dL |
4 - 180 days | 4.85 - 5.80 mg/dL |
180 days - 2.5 years | 4.60 - 5.50 mg/dL |
2.5 - 18 years | 4.45 - 5.25 mg/dL |
>18 years | 4.50 - 5.20 mg/dL |
CPT/LOINC Codes
82330