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Calcium, Ionized, Serum

Alternative Names/Synonyms	Free Calcium
Laboratory	Core Laboratory & Transfusion Medicine
Sub-section	Biochemistry
Specimen Type	Blood
Test Code	SCAI

Clinical Significance

Diagnosing and monitoring of a wide range of disorders including diseases of bone, kidney, parathyroid gland, or gastrointestinal tract.

Specimen Requirements (Sample Type)

Serum

Specimen Requirements (Volume (mL))

65 µL

Specimen Requirements (Tube Type)

Serum (Gold SST)
Collection Containers – Tube Types

Collection Requirements

Blood Collection Instructions

Sample Stability

Room Temperature: 2 hours

Cause for Rejection

Specimen Acceptability and Transport Guidance

Instrument, Methodology

Radiometer ABL90

Test Availability

24 hours a day, 7 days a week

STAT Turnaround Time

30 minutes

Routine Turnaround Time

1 hour

Reference Ranges

1.17 - 1.33 mmol/L

In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.

Laboratory Contact Information

416-586-4800 extension 4688