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Calcium, Ionized, Blood

Important Note

Note: This test should be used for inpatient testing or specimens that can be collected at 160 Allen Street and brought to the lab immediately on ice.

FOR OUTPATIENT TESTING, Refer to and order CAI- Calcium, Ionized, Serum which will be performed at Mayo Medical Laboratories.

Performing Laboratory

Rutland Regional Medical Center Laboratory

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Dark-green top (lithium heparin)

Specimen Volume: Full tube

Specimen Minimum Volume: 1 mL

Collection Instructions:

1. Immediately place specimen on wet ice.

2. Send specimen in original tube.

3. Tube must remain unopened until test is performed.

Days Performed

Daily

Available STAT

Analytical Time:

1 hour

Methodology

Ion-Selective Electrode (ISE)

 

Test Classification and CPT Coding

82330

Normal Reference Values

1.13-1.32 mmol/L

Specimen Transport Temperature

On wet ice

Critical Values

<0.9 mmol/L or >1.4 mmol/L (automatic call-back)