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Test ID BLOD0656 Calcium, Ionized

AKA

iCA++, Free CA++, Calcium, Ionized

Specimen Type/Requirements

Hospital: Collect a balanced heparin syringe or Green (Lithium Heparin) Tube and send to Respiratory Therapy. Green (Lithium Heparin) microtainer NOT acceptable for testing. 

Outpatient: Collect a Gold (SST Serum) Tube, centrifuge and send in original tube unopened (keep anaerobic). Once spun down, iCa++ is stable for 48 hrs at room temperature. Do not use 3 mL tubes.

Specimen Volume

Preferred Volume 1.0 mL whole blood/serum
Minimum Volume 1.0 mL whole blood or 500 µL serum

 

Stability/Transport

Room Temperature

48 hours (Gold-SST Serum)

4 hours (Green- Lithium Heparin)

 Preferred for Transport
Refrigerated N/A  
Frozen N/A  

Performed Test Frequency

Monday-Sunday

Methodology

Electrode

Performing Lab

Sanford Respiratory Therapy Fargo

CPT

82330