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Test Code IONCA Ionized Calcium 

Alias

N/A

Collection Method

Venous Collection 

Container

ABG Syringe 

Instructions/Special Handling

On ice (whole blood)

Spin within 1 hour for Gold SST tube

Preferred Specimen

ABG Syringe 

Acceptable Specimes

  • Serum 
    • Gold SST tube (unopened; greater than 1/2 full)
  • Whole Blood
    • Lithium Heparin (no gel)

Units

mg/dl

Reference Ranges

Ca Ionized pH; 7.35 - 7.45

Ca Ionized; 4.60 - 5.32mg/dl

Critical Values

Ca Ionized; ≤3.17   ≥6.29

Reasons for Rejection

Hemolysis N/A
Icterus N/A
Lipemia N/A
Other QNS, Contaminated, Improperly labeled, Improper specimen type, Clotted

 

Specimen Stability

Ambient (15-25°C) 30 Minutes (whole blood)
Refrigerated (2-8°C) 1 hour (on ice, whole blood), 72 hours unopened (SST)
Frozen (-20°C) N/A

 

Performing Site

Boone Health Laboratory

Performance Information

Days/Times Performed Daily 24/7
Expected Turn around Time Same day
Methodology/Method Description GEMs 

CPT Code(s)

82330

Panel Components

N/A