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Test Code ICA Ionized Calcium, Whole Blood

Clinical Information

This test measures the non-protein bound calcium pool in whole blood and may be a more reliable assessment of the calcium in critically ill patients or patients with hypoalbuminemia.

Synonym

  • ICA

Specimen Required

Clinical Lab UH and Clinical Lab James West Campus:

Preferred Container/Tube: Mint Green Top
Acceptable Container/Tube: Mint Green Top, Dry Lithium Heparin Syringe
Specimen Volume: 3 mL Mint Green Top, Full Syringe
Specimen Minimum Volume: 1 mL Mint Green Top, Full Syringe

 

Respiratory Therapy:
Preferred Container/Tube: Dry Lithium Heparin Syringe
Acceptable Container/Tube: Dry Lithium Heparin Syringe
Specimen Volume: Full Syringe
Specimen Minimum Volume: Full Syringe

Specimen Stability Information

Ambient: 3 hours
Refrigerated: 4 hours

Rejected Due To

  • Sample received past listed stability
  • Frozen specimens
  • Unacceptable container type
  • Clotted specimens whole blood
  • Quantity not sufficient
  • Received in open air tube

Reference Values

4.60-5.30 mg/dL

Method Description

Potentiometry

Performing Lab

Clinical Lab UH
Clinical Lab James West Campus
Respiratory Therapy East

Day(s) Performed

Monday through Sunday

Reporting Name

Ionized Calcium, Whole Blood

CPT Code Information

82330

LOINC Code Information

1994-3