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HelpCatalog ID Ion Ca Calcium, Ionized
CPOE Test Name
Calcium Ionized, Serum; Ionized Ca; Calcium Ionized, Whole Blood; Whole Blood Calcium Ionized
Synonyms
Free Calcium, CA++, IONCA
Specimen Type
Whole blood
Specimen Requirements
For Whole Blood – Prepackaged balanced Heparinized Blood Gas syringe or Dark Green Sodium Heparin tube
Causes for Rejection
Wrong tube; gross hemolysis; insufficient quantity; improper labeling
Reference Values
Whole Blood 4.5 – 5.3 mg/dL
Critical Values
Whole Blood <3.1 mg/dL or >6.4 mg/dL
Performing Lab
Core Laboratory, AD 3301 721-2120
Turn Around Time
Routine: 2-4 hrs.; Urgent/Emergent: 1 hr.
Test Consists
7.4 pH corrected Ionized Calcium & Non pH corrected Ionized Calcium
CPT / HCPCS Code
82330